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Initial commit for version 2.3.x

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OpenFOAM-admin 2014-02-17 16:00:08 +00:00
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# git-ls-files --others --exclude-from=.git/info/exclude
# Lines that start with '#' are comments.
# editor and misc backup files - anywhere
*~
.*~
*.bak
*.bak[0-9][0-9]
*.orig
*.orig[0-9][0-9]
\#*\#
# file-browser settings - anywhere
.directory
# CVS recovered versions - anywhere
.#*
# objects and archives - anywhere
*.[oa]
*.la
*.so
*.jar
# derived files
lex.yy.c
# Corefiles
core
# dependency files - anywhere
*.dep
# lnInclude (symlink) directories - anywhere
lnInclude
# build directories - anywhere
linux*Clang*/
linux*Gcc*/
linux*Icc*/
linuxming*/
SiCortex*Gcc*/
solaris*Gcc*/
SunOS*Gcc*/
platforms/
# reinstate wmake/rules that might look like build directories
!wmake/rules/*/
# doxygen generated documentation
doc/Doxygen/html
doc/Doxygen/latex
doc/Doxygen/man
doc/Doxygen/DTAGS
# generated files in the main directory (e.g. ReleaseNotes-?.?.html)
# and in the doc directory
/*.html
/doc/*.html
# untracked configuration files
/etc/prefs.csh
/etc/prefs.sh
/etc/config/prefs.csh
/etc/config/prefs.sh
# source packages - anywhere
*.tar.bz2
*.tar.gz
*.tar
*.tgz
*.gtgz
# ignore the persistent .build tag in the main directory
/.build
# ignore .timeStamp in the main directory
/.timeStamp
# ignore .tags in the main directory
/.tags
# ignore eclipse project files in the main directory
/.cproject
/.project
# end-of-file

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#!/bin/sh
cd ${0%/*} || exit 1 # run from this directory
wmakeCheckPwd "$WM_PROJECT_DIR" || {
echo "Error: Current directory is not \$WM_PROJECT_DIR"
echo " The environment variables are inconsistent with the installation."
echo " Check the OpenFOAM entries in your dot-files and source them."
exit 1
}
[ -n "$FOAM_EXT_LIBBIN" ] || {
echo "Error: FOAM_EXT_LIBBIN not set"
echo " Check the OpenFOAM entries in your dot-files and source them."
exit 1
}
# wmake is required for subsequent targets
( cd wmake/src && make )
# build ThirdParty sources
if [ -d "$WM_THIRD_PARTY_DIR" ]
then
$WM_THIRD_PARTY_DIR/Allwmake
else
echo "no ThirdParty sources found - skipping"
fi
# build OpenFOAM libraries and applications
src/Allwmake $*
applications/Allwmake $*
if [ "$1" = doc ]
then
doc/Allwmake $*
fi
# ----------------------------------------------------------------- end-of-file

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GNU GENERAL PUBLIC LICENSE
OpenFOAM(R) is Copyright (C) 2011 OpenFOAM Foundation
Contact: OpenFOAM Foundation (OpenFOAM.Foundation@gmail.com)
You may use, distribute and copy the OpenFOAM CFD Toolbox under the terms
of GNU General Public License version 3, which is displayed below, or
(at your option) any later version.
-------------------------------------------------------------------------
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16. Limitation of Liability.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.
-------------------------------------------------------------------------

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<head>
<title>OpenFOAM README for version 2.3.0</title>
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<body>
<div id="preamble">
</div>
<div id="content">
<h1 class="title">OpenFOAM README for version 2.3.0</h1>
<div id="table-of-contents">
<h2>Table of Contents</h2>
<div id="text-table-of-contents">
<ul>
<li><a href="#sec-1">1 About OpenFOAM</a></li>
<li><a href="#sec-2">2 Copyright</a></li>
<li><a href="#sec-3">3 Download and installation instructions</a></li>
<li><a href="#sec-4">4 Release notes</a></li>
<li><a href="#sec-5">5 Documentation</a></li>
<li><a href="#sec-6">6 Support and development contracts</a></li>
<li><a href="#sec-7">7 Reporting Bugs in OpenFOAM</a></li>
</ul>
</div>
</div>
<div id="outline-container-1" class="outline-2">
<h2 id="sec-1"><span class="section-number-2">1</span> About OpenFOAM</h2>
<div class="outline-text-2" id="text-1">
<p> OpenFOAM is a free, open source computational fluid dynamcis (CFD) software
package released by the OpenFOAM Foundation. It has a large user base across
most areas of engineering and science, from both commercial and academic
organisations. OpenFOAM has an extensive range of features to solve anything
from complex fluid flows involving chemical reactions, turbulence and heat
transfer, to solid dynamics and electromagnetics.
</p>
</div>
</div>
<div id="outline-container-2" class="outline-2">
<h2 id="sec-2"><span class="section-number-2">2</span> Copyright</h2>
<div class="outline-text-2" id="text-2">
<p> OpenFOAM is free software: you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later
version. See the file <code>COPYING</code> in this directory or
<a href="http://www.gnu.org/licenses/">http://www.gnu.org/licenses/</a>, for a description of the GNU General Public
License terms under which you can copy the files.
</p>
</div>
</div>
<div id="outline-container-3" class="outline-2">
<h2 id="sec-3"><span class="section-number-2">3</span> Download and installation instructions</h2>
<div class="outline-text-2" id="text-3">
<ul>
<li>To install from this Git repository, see
<a href="http://www.OpenFOAM.org/git.php">http://www.OpenFOAM.org/git.php</a>
</li>
</ul>
</div>
</div>
<div id="outline-container-4" class="outline-2">
<h2 id="sec-4"><span class="section-number-2">4</span> Release notes</h2>
<div class="outline-text-2" id="text-4">
<p> <a href="http://www.OpenFOAM.org/version2.3.0">http://www.OpenFOAM.org/version2.3.0</a>
</p>
</div>
</div>
<div id="outline-container-5" class="outline-2">
<h2 id="sec-5"><span class="section-number-2">5</span> Documentation</h2>
<div class="outline-text-2" id="text-5">
<p> <a href="http://www.OpenFOAM.com/docs">http://www.OpenFOAM.com/docs</a>
</p>
</div>
</div>
<div id="outline-container-6" class="outline-2">
<h2 id="sec-6"><span class="section-number-2">6</span> Support and development contracts</h2>
<div class="outline-text-2" id="text-6">
<p> <a href="http://www.OpenFOAM.com/support">http://www.OpenFOAM.com/support</a>
</p>
</div>
</div>
<div id="outline-container-7" class="outline-2">
<h2 id="sec-7"><span class="section-number-2">7</span> Reporting Bugs in OpenFOAM</h2>
<div class="outline-text-2" id="text-7">
<p> <a href="http://www.OpenFOAM.com/bugs">http://www.OpenFOAM.com/bugs</a>
</p></div>
</div>
</div>
<div id="postamble">
<p class="date">Date: 9th February 2014</p>
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40
README.org Normal file
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@ -0,0 +1,40 @@
# -*- mode: org; -*-
#
#+TITLE: OpenFOAM README for version 2.3.0
#+AUTHOR: The OpenFOAM Foundation
#+DATE: 9th February 2014
#+LINK: http://www.openfoam.org
#+OPTIONS: author:nil ^:{}
# Copyright (c) 2014 OpenFOAM Foundation.
* About OpenFOAM
OpenFOAM is a free, open source computational fluid dynamcis (CFD) software
package released by the OpenFOAM Foundation. It has a large user base across
most areas of engineering and science, from both commercial and academic
organisations. OpenFOAM has an extensive range of features to solve anything
from complex fluid flows involving chemical reactions, turbulence and heat
transfer, to solid dynamics and electromagnetics.
* Copyright
OpenFOAM is free software: you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later
version. See the file =COPYING= in this directory or
[[http://www.gnu.org/licenses/]], for a description of the GNU General Public
License terms under which you can copy the files.
* Download and installation instructions
+ To install from this Git repository, see
[[http://www.OpenFOAM.org/git.php]]
* Release notes
[[http://www.OpenFOAM.org/version2.3.0]]
* Documentation
[[http://www.OpenFOAM.com/docs]]
* Support and development contracts
[[http://www.OpenFOAM.com/support]]
* Reporting Bugs in OpenFOAM
[[http://www.OpenFOAM.com/bugs]]

22
applications/Allwmake Executable file
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@ -0,0 +1,22 @@
#!/bin/sh
cd ${0%/*} || exit 1 # run from this directory
wmakeCheckPwd "$WM_PROJECT_DIR/applications" || {
echo "Error: Current directory is not \$WM_PROJECT_DIR/applications"
echo " The environment variables are inconsistent with the installation."
echo " Check the OpenFOAM entries in your dot-files and source them."
exit 1
}
[ -n "$FOAM_EXT_LIBBIN" ] || {
echo "Error: FOAM_EXT_LIBBIN not set"
echo " Check the OpenFOAM entries in your dot-files and source them."
exit 1
}
set -x
wmake all utilities $*
wmake all solvers $*
# ----------------------------------------------------------------- end-of-file

3
applications/solvers/DNS/dnsFoam/Make/files Normal file
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@ -0,0 +1,3 @@
dnsFoam.C
EXE = $(FOAM_APPBIN)/dnsFoam

7
applications/solvers/DNS/dnsFoam/Make/options Normal file
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@ -0,0 +1,7 @@
EXE_INC = \
-I$(LIB_SRC)/finiteVolume/lnInclude \
-I$(LIB_SRC)/randomProcesses/lnInclude
EXE_LIBS = \
-lfiniteVolume \
-lrandomProcesses

29
applications/solvers/DNS/dnsFoam/createFields.H Normal file
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@ -0,0 +1,29 @@
Info<< "Reading field p\n" << endl;
volScalarField p
(
IOobject
(
"p",
runTime.timeName(),
mesh,
IOobject::MUST_READ,
IOobject::AUTO_WRITE
),
mesh
);
Info<< "Reading field U\n" << endl;
volVectorField U
(
IOobject
(
"U",
runTime.timeName(),
mesh,
IOobject::MUST_READ,
IOobject::AUTO_WRITE
),
mesh
);
#include "createPhi.H"

138
applications/solvers/DNS/dnsFoam/dnsFoam.C Normal file
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@ -0,0 +1,138 @@
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2013 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Application
dnsFoam
Description
Direct numerical simulation solver for boxes of isotropic turbulence
\*---------------------------------------------------------------------------*/
#include "fvCFD.H"
#include "Kmesh.H"
#include "UOprocess.H"
#include "fft.H"
#include "calcEk.H"
#include "graph.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
int main(int argc, char *argv[])
{
#include "setRootCase.H"
#include "createTime.H"
#include "createMeshNoClear.H"
#include "readTransportProperties.H"
#include "createFields.H"
#include "readTurbulenceProperties.H"
#include "initContinuityErrs.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Info<< nl << "Starting time loop" << endl;
while (runTime.loop())
{
Info<< "Time = " << runTime.timeName() << nl << endl;
#include "readPISOControls.H"
force.internalField() = ReImSum
(
fft::reverseTransform
(
K/(mag(K) + 1.0e-6) ^ forceGen.newField(), K.nn()
)
);
#include "globalProperties.H"
fvVectorMatrix UEqn
(
fvm::ddt(U)
+ fvm::div(phi, U)
- fvm::laplacian(nu, U)
==
force
);
solve(UEqn == -fvc::grad(p));
// --- PISO loop
for (int corr=1; corr<=1; corr++)
{
volScalarField rAU(1.0/UEqn.A());
surfaceScalarField rAUf("rAUf", fvc::interpolate(rAU));
volVectorField HbyA("HbyA", U);
HbyA = rAU*UEqn.H();
surfaceScalarField phiHbyA
(
"phiHbyA",
(fvc::interpolate(HbyA) & mesh.Sf())
+ rAUf*fvc::ddtCorr(U, phi)
);
fvScalarMatrix pEqn
(
fvm::laplacian(rAUf, p) == fvc::div(phiHbyA)
);
pEqn.solve();
phi = phiHbyA - pEqn.flux();
#include "continuityErrs.H"
U = HbyA - rAU*fvc::grad(p);
U.correctBoundaryConditions();
}
runTime.write();
if (runTime.outputTime())
{
calcEk(U, K).write
(
runTime.path()/"graphs"/runTime.timeName(),
"Ek",
runTime.graphFormat()
);
}
Info<< "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
<< " ClockTime = " << runTime.elapsedClockTime() << " s"
<< nl << endl;
}
Info<< "End\n" << endl;
return 0;
}
// ************************************************************************* //

20
applications/solvers/DNS/dnsFoam/globalProperties.H Normal file
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@ -0,0 +1,20 @@
Info<< "k("
<< runTime.timeName()
<< ") = "
<< 3.0/2.0*average(magSqr(U)).value() << endl;
Info<< "epsilon("
<< runTime.timeName()
<< ") = "
<< (
0.5*nu*average
(
magSqr(fvc::grad(U) + fvc::grad(U)().T())
)
).value() << endl;
Info<< "U.f("
<< runTime.timeName()
<< ") = "
<< 181.0*average(U & force).value() << endl;

18
applications/solvers/DNS/dnsFoam/readTransportProperties.H Normal file
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@ -0,0 +1,18 @@
Info<< "Reading transportProperties\n" << endl;
IOdictionary transportProperties
(
IOobject
(
"transportProperties",
runTime.constant(),
mesh,
IOobject::MUST_READ_IF_MODIFIED,
IOobject::NO_WRITE
)
);
dimensionedScalar nu
(
transportProperties.lookup("nu")
);

21
applications/solvers/DNS/dnsFoam/readTurbulenceProperties.H Normal file
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@ -0,0 +1,21 @@
Info<< "Reading turbulenceProperties\n" << endl;
IOdictionary turbulenceProperties
(
IOobject
(
"turbulenceProperties",
runTime.constant(),
mesh,
IOobject::MUST_READ_IF_MODIFIED,
IOobject::NO_WRITE
)
);
volVectorField force
(
U/dimensionedScalar("dt", dimTime, runTime.deltaTValue())
);
Kmesh K(mesh);
UOprocess forceGen(K, runTime.deltaTValue(), turbulenceProperties);

3
applications/solvers/basic/laplacianFoam/Make/files Normal file
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@ -0,0 +1,3 @@
laplacianFoam.C
EXE = $(FOAM_APPBIN)/laplacianFoam

3
applications/solvers/basic/laplacianFoam/Make/options Normal file
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@ -0,0 +1,3 @@
EXE_INC = -I$(LIB_SRC)/finiteVolume/lnInclude
EXE_LIBS = -lfiniteVolume

37
applications/solvers/basic/laplacianFoam/createFields.H Normal file
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@ -0,0 +1,37 @@
Info<< "Reading field T\n" << endl;
volScalarField T
(
IOobject
(
"T",
runTime.timeName(),
mesh,
IOobject::MUST_READ,
IOobject::AUTO_WRITE
),
mesh
);
Info<< "Reading transportProperties\n" << endl;
IOdictionary transportProperties
(
IOobject
(
"transportProperties",
runTime.constant(),
mesh,
IOobject::MUST_READ_IF_MODIFIED,
IOobject::NO_WRITE
)
);
Info<< "Reading diffusivity DT\n" << endl;
dimensionedScalar DT
(
transportProperties.lookup("DT")
);

76
applications/solvers/basic/laplacianFoam/laplacianFoam.C Normal file
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@ -0,0 +1,76 @@
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Application
laplacianFoam
Description
Solves a simple Laplace equation, e.g. for thermal diffusion in a solid.
\*---------------------------------------------------------------------------*/
#include "fvCFD.H"
#include "simpleControl.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
int main(int argc, char *argv[])
{
#include "setRootCase.H"
#include "createTime.H"
#include "createMesh.H"
#include "createFields.H"
simpleControl simple(mesh);
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Info<< "\nCalculating temperature distribution\n" << endl;
while (simple.loop())
{
Info<< "Time = " << runTime.timeName() << nl << endl;
while (simple.correctNonOrthogonal())
{
solve
(
fvm::ddt(T) - fvm::laplacian(DT, T)
);
}
#include "write.H"
Info<< "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
<< " ClockTime = " << runTime.elapsedClockTime() << " s"
<< nl << endl;
}
Info<< "End\n" << endl;
return 0;
}
// ************************************************************************* //

46
applications/solvers/basic/laplacianFoam/write.H Normal file
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if (runTime.outputTime())
{
volVectorField gradT(fvc::grad(T));
volScalarField gradTx
(
IOobject
(
"gradTx",
runTime.timeName(),
mesh,
IOobject::NO_READ,
IOobject::AUTO_WRITE
),
gradT.component(vector::X)
);
volScalarField gradTy
(
IOobject
(
"gradTy",
runTime.timeName(),
mesh,
IOobject::NO_READ,
IOobject::AUTO_WRITE
),
gradT.component(vector::Y)
);
volScalarField gradTz
(
IOobject
(
"gradTz",
runTime.timeName(),
mesh,
IOobject::NO_READ,
IOobject::AUTO_WRITE
),
gradT.component(vector::Z)
);
runTime.write();
}

3
applications/solvers/basic/potentialFoam/Make/files Normal file
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@ -0,0 +1,3 @@
potentialFoam.C
EXE = $(FOAM_APPBIN)/potentialFoam

11
applications/solvers/basic/potentialFoam/Make/options Normal file
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@ -0,0 +1,11 @@
EXE_INC = \
-I$(LIB_SRC)/finiteVolume/lnInclude \
-I$(LIB_SRC)/meshTools/lnInclude \
-I$(LIB_SRC)/fvOptions/lnInclude \
-I$(LIB_SRC)/sampling/lnInclude
EXE_LIBS = \
-lfiniteVolume \
-lmeshTools \
-lfvOptions \
-lsampling

62
applications/solvers/basic/potentialFoam/createFields.H Normal file
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@ -0,0 +1,62 @@
Info<< "Reading field p\n" << endl;
volScalarField p
(
IOobject
(
"p",
runTime.timeName(),
mesh,
IOobject::MUST_READ,
IOobject::NO_WRITE
),
mesh
);
p = dimensionedScalar("zero", p.dimensions(), 0.0);
Info<< "Reading field U\n" << endl;
volVectorField U
(
IOobject
(
"U",
runTime.timeName(),
mesh,
IOobject::MUST_READ,
IOobject::AUTO_WRITE
),
mesh
);
U = dimensionedVector("0", U.dimensions(), vector::zero);
surfaceScalarField phi
(
IOobject
(
"phi",
runTime.timeName(),
mesh,
IOobject::NO_READ,
IOobject::AUTO_WRITE
),
fvc::interpolate(U) & mesh.Sf()
);
if (args.optionFound("initialiseUBCs"))
{
U.correctBoundaryConditions();
phi = fvc::interpolate(U) & mesh.Sf();
}
label pRefCell = 0;
scalar pRefValue = 0.0;
setRefCell
(
p,
potentialFlow,
pRefCell,
pRefValue
);

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2013 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Application
potentialFoam
Description
Simple potential flow solver which can be used to generate starting fields
for full Navier-Stokes codes.
\*---------------------------------------------------------------------------*/
#include "fvCFD.H"
#include "fvIOoptionList.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
int main(int argc, char *argv[])
{
argList::addBoolOption("writep", "write the final pressure field");
argList::addBoolOption
(
"initialiseUBCs",
"initialise U boundary conditions"
);
#include "setRootCase.H"
#include "createTime.H"
#include "createMesh.H"
#include "readControls.H"
#include "createFields.H"
#include "createFvOptions.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Info<< nl << "Calculating potential flow" << endl;
// Since solver contains no time loop it would never execute
// function objects so do it ourselves
runTime.functionObjects().start();
fvOptions.makeRelative(phi);
adjustPhi(phi, U, p);
for (int nonOrth=0; nonOrth<=nNonOrthCorr; nonOrth++)
{
fvScalarMatrix pEqn
(
fvm::laplacian
(
dimensionedScalar
(
"1",
dimTime/p.dimensions()*dimensionSet(0, 2, -2, 0, 0),
1
),
p
)
==
fvc::div(phi)
);
pEqn.setReference(pRefCell, pRefValue);
pEqn.solve();
if (nonOrth == nNonOrthCorr)
{
phi -= pEqn.flux();
}
}
fvOptions.makeAbsolute(phi);
Info<< "continuity error = "
<< mag(fvc::div(phi))().weightedAverage(mesh.V()).value()
<< endl;
U = fvc::reconstruct(phi);
U.correctBoundaryConditions();
Info<< "Interpolated U error = "
<< (sqrt(sum(sqr((fvc::interpolate(U) & mesh.Sf()) - phi)))
/sum(mesh.magSf())).value()
<< endl;
// Force the write
U.write();
phi.write();
if (args.optionFound("writep"))
{
p.write();
}
runTime.functionObjects().end();
Info<< "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
<< " ClockTime = " << runTime.elapsedClockTime() << " s"
<< nl << endl;
Info<< "End\n" << endl;
return 0;
}
// ************************************************************************* //

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const dictionary& potentialFlow =
mesh.solutionDict().subDict("potentialFlow");
const int nNonOrthCorr =
potentialFlow.lookupOrDefault<int>("nNonOrthogonalCorrectors", 0);

3
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scalarTransportFoam.C
EXE = $(FOAM_APPBIN)/scalarTransportFoam

11
applications/solvers/basic/scalarTransportFoam/Make/options Normal file
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EXE_INC = \
-I$(LIB_SRC)/finiteVolume/lnInclude \
-I$(LIB_SRC)/fvOptions/lnInclude \
-I$(LIB_SRC)/meshTools/lnInclude \
-I$(LIB_SRC)/sampling/lnInclude
EXE_LIBS = \
-lfiniteVolume \
-lfvOptions \
-lmeshTools \
-lsampling

55
applications/solvers/basic/scalarTransportFoam/createFields.H Normal file
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Info<< "Reading field T\n" << endl;
volScalarField T
(
IOobject
(
"T",
runTime.timeName(),
mesh,
IOobject::MUST_READ,
IOobject::AUTO_WRITE
),
mesh
);
Info<< "Reading field U\n" << endl;
volVectorField U
(
IOobject
(
"U",
runTime.timeName(),
mesh,
IOobject::MUST_READ,
IOobject::AUTO_WRITE
),
mesh
);
Info<< "Reading transportProperties\n" << endl;
IOdictionary transportProperties
(
IOobject
(
"transportProperties",
runTime.constant(),
mesh,
IOobject::MUST_READ_IF_MODIFIED,
IOobject::NO_WRITE
)
);
Info<< "Reading diffusivity DT\n" << endl;
dimensionedScalar DT
(
transportProperties.lookup("DT")
);
# include "createPhi.H"

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2013 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Application
scalarTransportFoam
Description
Solves a transport equation for a passive scalar
\*---------------------------------------------------------------------------*/
#include "fvCFD.H"
#include "fvIOoptionList.H"
#include "simpleControl.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
int main(int argc, char *argv[])
{
#include "setRootCase.H"
#include "createTime.H"
#include "createMesh.H"
#include "createFields.H"
#include "createFvOptions.H"
simpleControl simple(mesh);
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Info<< "\nCalculating scalar transport\n" << endl;
#include "CourantNo.H"
while (simple.loop())
{
Info<< "Time = " << runTime.timeName() << nl << endl;
while (simple.correctNonOrthogonal())
{
solve
(
fvm::ddt(T)
+ fvm::div(phi, T)
- fvm::laplacian(DT, T)
==
fvOptions(T)
);
}
runTime.write();
}
Info<< "End\n" << endl;
return 0;
}
// ************************************************************************* //

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{
volScalarField& hea = thermo.he();
solve
(
betav*fvm::ddt(rho, hea) + mvConvection->fvmDiv(phi, hea)
+ betav*fvc::ddt(rho, K) + fvc::div(phi, K)
+ (
hea.name() == "ea"
? fvc::div
(
phi/fvc::interpolate(rho),
p,
"div(phiv,p)"
)
: -betav*dpdt
)
- fvm::laplacian(Db, hea)
);
thermo.correct();
}

27
applications/solvers/combustion/PDRFoam/EauEqn.H Normal file
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if (ign.ignited())
{
volScalarField& heau = thermo.heu();
solve
(
betav*fvm::ddt(rho, heau) + mvConvection->fvmDiv(phi, heau)
+ (betav*fvc::ddt(rho, K) + fvc::div(phi, K))*rho/thermo.rhou()
+ (
heau.name() == "eau"
? fvc::div
(
phi/fvc::interpolate(rho),
p,
"div(phiv,p)"
)*rho/thermo.rhou()
: -betav*dpdt*rho/thermo.rhou()
)
- fvm::laplacian(Db, heau)
// These terms cannot be used in partially-premixed combustion due to
// the resultant inconsistency between ft and heau transport.
// A possible solution would be to solve for ftu as well as ft.
//- fvm::div(muEff*fvc::grad(b)/(b + 0.001), heau)
//+ fvm::Sp(fvc::div(muEff*fvc::grad(b)/(b + 0.001)), heau)
);
}

33
applications/solvers/combustion/PDRFoam/Make/files Normal file
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XiModels/XiModel/XiModel.C
XiModels/XiModel/XiModelNew.C
XiModels/fixed/fixed.C
XiModels/algebraic/algebraic.C
XiModels/transport/transport.C
XiModels/XiEqModels/XiEqModel/XiEqModel.C
XiModels/XiEqModels/XiEqModel/XiEqModelNew.C
XiModels/XiEqModels/Gulder/Gulder.C
XiModels/XiEqModels/instabilityXiEq/instabilityXiEq.C
XiModels/XiEqModels/SCOPEBlendXiEq/SCOPEBlendXiEq.C
XiModels/XiEqModels/SCOPEXiEq/SCOPEXiEq.C
XiModels/XiGModels/XiGModel/XiGModel.C
XiModels/XiGModels/XiGModel/XiGModelNew.C
XiModels/XiGModels/KTS/KTS.C
XiModels/XiGModels/instabilityG/instabilityG.C
PDRModels/turbulence/PDRkEpsilon/PDRkEpsilon.C
PDRModels/dragModels/PDRDragModel/PDRDragModel.C
PDRModels/dragModels/PDRDragModel/PDRDragModelNew.C
PDRModels/dragModels/basic/basic.C
PDRModels/XiEqModels/basicXiSubXiEq/basicXiSubXiEq.C
PDRModels/XiGModels/basicXiSubG/basicXiSubG.C
laminarFlameSpeed/SCOPE/SCOPELaminarFlameSpeed.C
/*PDRFoamAutoRefine.C*/
PDRFoam.C
EXE = $(FOAM_APPBIN)/PDRFoam

30
applications/solvers/combustion/PDRFoam/Make/options Normal file
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EXE_INC = \
-IXiModels/XiModel \
-IXiModels/XiEqModels/XiEqModel \
-IXiModels/XiGModels/XiGModel \
-IPDRModels/dragModels/PDRDragModel \
-IlaminarFlameSpeed/SCOPE \
-I$(LIB_SRC)/engine/lnInclude \
-I$(LIB_SRC)/thermophysicalModels/specie/lnInclude \
-I$(LIB_SRC)/thermophysicalModels/basic/lnInclude \
-I$(LIB_SRC)/thermophysicalModels/reactionThermo/lnInclude \
-I$(LIB_SRC)/turbulenceModels/compressible/RAS/lnInclude \
-I$(LIB_SRC)/turbulenceModels \
-I$(LIB_SRC)/thermophysicalModels/laminarFlameSpeed/lnInclude \
-I$(LIB_SRC)/finiteVolume/lnInclude \
-I$(LIB_SRC)/dynamicFvMesh/lnInclude \
-I$(LIB_SRC)/dynamicMesh/lnInclude \
-I$(LIB_SRC)/meshTools/lnInclude \
-I$(LIB_SRC)/triSurface/lnInclude
EXE_LIBS = \
-lengine \
-lmeshTools \
-lcompressibleTurbulenceModel \
-lcompressibleRASModels \
-lfluidThermophysicalModels \
-lreactionThermophysicalModels \
-lspecie \
-llaminarFlameSpeedModels \
-lfiniteVolume \
-ldynamicFvMesh

156
applications/solvers/combustion/PDRFoam/PDRFoam.C Normal file
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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Application
PDRFoam
Description
Solver for compressible premixed/partially-premixed combustion with
turbulence modelling.
Combusting RANS code using the b-Xi two-equation model.
Xi may be obtained by either the solution of the Xi transport
equation or from an algebraic exression. Both approaches are
based on Gulder's flame speed correlation which has been shown
to be appropriate by comparison with the results from the
spectral model.
Strain effects are incorporated directly into the Xi equation
but not in the algebraic approximation. Further work need to be
done on this issue, particularly regarding the enhanced removal rate
caused by flame compression. Analysis using results of the spectral
model will be required.
For cases involving very lean Propane flames or other flames which are
very strain-sensitive, a transport equation for the laminar flame
speed is present. This equation is derived using heuristic arguments
involving the strain time scale and the strain-rate at extinction.
the transport velocity is the same as that for the Xi equation.
For large flames e.g. explosions additional modelling for the flame
wrinkling due to surface instabilities may be applied.
PDR (porosity/distributed resistance) modelling is included to handle
regions containing blockages which cannot be resolved by the mesh.
The fields used by this solver are:
betav: Volume porosity
Lobs: Average diameter of obstacle in cell (m)
Aw: Obstacle surface area per unit volume (1/m)
CR: Drag tensor (1/m)
CT: Turbulence generation parameter (1/m)
Nv: Number of obstacles in cell per unit volume (m^-2)
nsv: Tensor whose diagonal indicates the number to substract from
Nv to get the number of obstacles crossing the flow in each
direction.
\*---------------------------------------------------------------------------*/
#include "fvCFD.H"
#include "psiuReactionThermo.H"
#include "RASModel.H"
#include "laminarFlameSpeed.H"
#include "XiModel.H"
#include "PDRDragModel.H"
#include "ignition.H"
#include "Switch.H"
#include "bound.H"
#include "pimpleControl.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
int main(int argc, char *argv[])
{
#include "setRootCase.H"
#include "createTime.H"
#include "createMesh.H"
#include "readCombustionProperties.H"
#include "readGravitationalAcceleration.H"
#include "createFields.H"
#include "initContinuityErrs.H"
#include "readTimeControls.H"
#include "compressibleCourantNo.H"
#include "setInitialDeltaT.H"
pimpleControl pimple(mesh);
scalar StCoNum = 0.0;
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Info<< "\nStarting time loop\n" << endl;
while (runTime.run())
{
#include "readTimeControls.H"
#include "compressibleCourantNo.H"
#include "setDeltaT.H"
runTime++;
Info<< "\n\nTime = " << runTime.timeName() << endl;
#include "rhoEqn.H"
// --- Pressure-velocity PIMPLE corrector loop
while (pimple.loop())
{
#include "UEqn.H"
// --- Pressure corrector loop
while (pimple.correct())
{
#include "bEqn.H"
#include "ftEqn.H"
#include "EauEqn.H"
#include "EaEqn.H"
if (!ign.ignited())
{
thermo.heu() == thermo.he();
}
#include "pEqn.H"
}
if (pimple.turbCorr())
{
turbulence->correct();
}
}
runTime.write();
Info<< "\nExecutionTime = "
<< runTime.elapsedCpuTime()
<< " s\n" << endl;
}
Info<< "\n end\n";
return 0;
}
// ************************************************************************* //

210
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@ -0,0 +1,210 @@
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Application
PDRFoam
Description
Solver for compressible premixed/partially-premixed combustion with
turbulence modelling.
Combusting RANS code using the b-Xi two-equation model.
Xi may be obtained by either the solution of the Xi transport
equation or from an algebraic exression. Both approaches are
based on Gulder's flame speed correlation which has been shown
to be appropriate by comparison with the results from the
spectral model.
Strain effects are incorporated directly into the Xi equation
but not in the algebraic approximation. Further work need to be
done on this issue, particularly regarding the enhanced removal rate
caused by flame compression. Analysis using results of the spectral
model will be required.
For cases involving very lean Propane flames or other flames which are
very strain-sensitive, a transport equation for the laminar flame
speed is present. This equation is derived using heuristic arguments
involving the strain time scale and the strain-rate at extinction.
the transport velocity is the same as that for the Xi equation.
For large flames e.g. explosions additional modelling for the flame
wrinkling due to surface instabilities may be applied.
PDR (porosity/distributed resistance) modelling is included to handle
regions containing blockages which cannot be resolved by the mesh.
\*---------------------------------------------------------------------------*/
#include "fvCFD.H"
#include "dynamicFvMesh.H"
#include "psiuReactionThermo.H"
#include "RASModel.H"
#include "laminarFlameSpeed.H"
#include "XiModel.H"
#include "PDRDragModel.H"
#include "ignition.H"
#include "Switch.H"
#include "bound.H"
#include "dynamicRefineFvMesh.H"
#include "pimpleControl.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
int main(int argc, char *argv[])
{
#include "setRootCase.H"
#include "createTime.H"
#include "createDynamicFvMesh.H"
#include "readCombustionProperties.H"
#include "readGravitationalAcceleration.H"
#include "createFields.H"
#include "initContinuityErrs.H"
#include "readTimeControls.H"
#include "compressibleCourantNo.H"
#include "setInitialDeltaT.H"
pimpleControl pimple(mesh);
scalar StCoNum = 0.0;
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Info<< "\nStarting time loop\n" << endl;
bool hasChanged = false;
while (runTime.run())
{
#include "readTimeControls.H"
#include "compressibleCourantNo.H"
#include "setDeltaT.H"
// Indicators for refinement. Note: before runTime++
// only for postprocessing reasons.
tmp<volScalarField> tmagGradP = mag(fvc::grad(p));
volScalarField normalisedGradP
(
"normalisedGradP",
tmagGradP()/max(tmagGradP())
);
normalisedGradP.writeOpt() = IOobject::AUTO_WRITE;
tmagGradP.clear();
runTime++;
Info<< "\n\nTime = " << runTime.timeName() << endl;
{
// Make the fluxes absolute
fvc::makeAbsolute(phi, rho, U);
// Test : disable refinement for some cells
PackedBoolList& protectedCell =
refCast<dynamicRefineFvMesh>(mesh).protectedCell();
if (protectedCell.empty())
{
protectedCell.setSize(mesh.nCells());
protectedCell = 0;
}
forAll(betav, cellI)
{
if (betav[cellI] < 0.99)
{
protectedCell[cellI] = 1;
}
}
// Flux estimate for introduced faces.
volVectorField rhoU("rhoU", rho*U);
// Do any mesh changes
bool meshChanged = mesh.update();
if (meshChanged)
{
hasChanged = true;
}
if (runTime.write() && hasChanged)
{
betav.write();
Lobs.write();
CT.write();
drag->writeFields();
flameWrinkling->writeFields();
hasChanged = false;
}
// Make the fluxes relative to the mesh motion
fvc::makeRelative(phi, rho, U);
}
#include "rhoEqn.H"
// --- Pressure-velocity PIMPLE corrector loop
while (pimple.loop())
{
#include "UEqn.H"
// --- Pressure corrector loop
while (pimple.correct())
{
#include "bEqn.H"
#include "ftEqn.H"
#include "huEqn.H"
#include "hEqn.H"
if (!ign.ignited())
{
hu == h;
}
#include "pEqn.H"
}
if (pimple.turbCorr())
{
turbulence->correct();
}
}
runTime.write();
Info<< "\nExecutionTime = "
<< runTime.elapsedCpuTime()
<< " s\n" << endl;
}
Info<< "\n end\n";
return 0;
}
// ************************************************************************* //

169
applications/solvers/combustion/PDRFoam/PDRModels/XiEqModels/basicXiSubXiEq/basicXiSubXiEq.C Normal file
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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "basicXiSubXiEq.H"
#include "addToRunTimeSelectionTable.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
namespace XiEqModels
{
defineTypeNameAndDebug(basicSubGrid, 0);
addToRunTimeSelectionTable(XiEqModel, basicSubGrid, dictionary);
}
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::XiEqModels::basicSubGrid::basicSubGrid
(
const dictionary& XiEqProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su
)
:
XiEqModel(XiEqProperties, thermo, turbulence, Su),
B_
(
IOobject
(
"B",
Su.mesh().facesInstance(),
Su.mesh(),
IOobject::MUST_READ,
IOobject::NO_WRITE
),
Su.mesh()
),
XiEqModel_(XiEqModel::New(XiEqModelCoeffs_, thermo, turbulence, Su))
{}
// * * * * * * * * * * * * * * * * Destructors * * * * * * * * * * * * * * * //
Foam::XiEqModels::basicSubGrid::~basicSubGrid()
{}
// * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
Foam::tmp<Foam::volScalarField> Foam::XiEqModels::basicSubGrid::XiEq() const
{
const fvMesh& mesh = Su_.mesh();
const volVectorField& U = mesh.lookupObject<volVectorField>("U");
const volScalarField& Nv = mesh.lookupObject<volScalarField>("Nv");
const volSymmTensorField& nsv =
mesh.lookupObject<volSymmTensorField>("nsv");
volScalarField magU(mag(U));
volVectorField Uhat
(
U/(mag(U) + dimensionedScalar("Usmall", U.dimensions(), 1e-4))
);
const scalarField Cw = pow(mesh.V(), 2.0/3.0);
tmp<volScalarField> tN
(
new volScalarField
(
IOobject
(
"tN",
mesh.time().constant(),
mesh,
IOobject::NO_READ,
IOobject::NO_WRITE
),
mesh,
dimensionedScalar("zero", Nv.dimensions(), 0.0),
zeroGradientFvPatchVectorField::typeName
)
);
volScalarField& N = tN();
N.internalField() = Nv.internalField()*Cw;
tmp<volSymmTensorField> tns
(
new volSymmTensorField
(
IOobject
(
"tns",
U.mesh().time().timeName(),
U.mesh(),
IOobject::NO_READ,
IOobject::NO_WRITE
),
U.mesh(),
dimensionedSymmTensor
(
"zero",
nsv.dimensions(),
pTraits<symmTensor>::zero
),
zeroGradientFvPatchSymmTensorField::typeName
)
);
volSymmTensorField& ns = tns();
ns.internalField() = nsv.internalField()*Cw;
volScalarField n(max(N - (Uhat & ns & Uhat), scalar(1e-4)));
volScalarField b((Uhat & B_ & Uhat)/sqrt(n));
volScalarField up(sqrt((2.0/3.0)*turbulence_.k()));
volScalarField XiSubEq
(
scalar(1)
+ max(2.2*sqrt(b), min(0.34*magU/up*sqrt(b), scalar(1.6)))
* min(n, scalar(1))
);
return (XiSubEq*XiEqModel_->XiEq());
}
bool Foam::XiEqModels::basicSubGrid::read(const dictionary& XiEqProperties)
{
XiEqModel::read(XiEqProperties);
return XiEqModel_->read(XiEqModelCoeffs_);
}
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Class
Foam::XiEqModels::basicSubGrid
Description
Basic sub-grid obstacle flame-wrinking enhancement factor model.
Details supplied by J Puttock 2/7/06.
<b> Sub-grid flame area generation </b>
\f$ n = N - \hat{\dwea{\vec{U}}}.n_{s}.\hat{\dwea{\vec{U}}} \f$
\f$ n_{r} = \sqrt{n} \f$
where:
\f$ \hat{\dwea{\vec{U}}} = \dwea{\vec{U}} / \vert \dwea{\vec{U}}
\vert \f$
\f$ b = \hat{\dwea{\vec{U}}}.B.\hat{\dwea{\vec{U}}} / n_{r} \f$
where:
\f$ B \f$ is the file "B".
\f$ N \f$ is the file "N".
\f$ n_{s} \f$ is the file "ns".
The flame area enhancement factor \f$ \Xi_{sub} \f$ is expected to
approach:
\f[
\Xi_{{sub}_{eq}} =
1 + max(2.2 \sqrt{b}, min(0.34 \frac{\vert \dwea{\vec{U}}
\vert}{{\vec{U}}^{'}}, 1.6)) \times min(\frac{n}{4}, 1)
\f]
SourceFiles
basicSubGrid.C
\*---------------------------------------------------------------------------*/
#ifndef basicSubGrid_H
#define basicSubGrid_H
#include "XiEqModel.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace XiEqModels
{
/*---------------------------------------------------------------------------*\
Class basicSubGrid Declaration
\*---------------------------------------------------------------------------*/
class basicSubGrid
:
public XiEqModel
{
// Private data
//- tblock
volSymmTensorField B_;
//- Equilibrium Xi model due to turbulence
autoPtr<XiEqModel> XiEqModel_;
// Private Member Functions
//- Disallow copy construct
basicSubGrid(const basicSubGrid&);
//- Disallow default bitwise assignment
void operator=(const basicSubGrid&);
public:
//- Runtime type information
TypeName("basicSubGrid");
// Constructors
//- Construct from components
basicSubGrid
(
const dictionary& XiEqProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su
);
//- Destructor
virtual ~basicSubGrid();
// Member Functions
//- Return the flame-wrinking XiEq
virtual tmp<volScalarField> XiEq() const;
//- Update properties from given dictionary
virtual bool read(const dictionary& XiEqProperties);
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace XiEqModels
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "basicXiSubG.H"
#include "addToRunTimeSelectionTable.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
namespace XiGModels
{
defineTypeNameAndDebug(basicSubGrid, 0);
addToRunTimeSelectionTable(XiGModel, basicSubGrid, dictionary);
};
};
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::XiGModels::basicSubGrid::basicSubGrid
(
const dictionary& XiGProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su
)
:
XiGModel(XiGProperties, thermo, turbulence, Su),
k1(readScalar(XiGModelCoeffs_.lookup("k1"))),
XiGModel_(XiGModel::New(XiGModelCoeffs_, thermo, turbulence, Su))
{}
// * * * * * * * * * * * * * * * * Destructors * * * * * * * * * * * * * * * //
Foam::XiGModels::basicSubGrid::~basicSubGrid()
{}
// * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
Foam::tmp<Foam::volScalarField> Foam::XiGModels::basicSubGrid::G() const
{
const objectRegistry& db = Su_.db();
const volVectorField& U = db.lookupObject<volVectorField>("U");
const volScalarField& Nv = db.lookupObject<volScalarField>("Nv");
const volScalarField& Lobs = db.lookupObject<volScalarField>("Lobs");
tmp<volScalarField> tGtot = XiGModel_->G();
volScalarField& Gtot = tGtot();
const scalarField Cw = pow(Su_.mesh().V(), 2.0/3.0);
tmp<volScalarField> tN
(
new volScalarField
(
IOobject
(
"tN",
Su_.mesh().time().timeName(),
Su_.mesh(),
IOobject::NO_READ,
IOobject::NO_WRITE,
false
),
Su_.mesh(),
dimensionedScalar("zero", Nv.dimensions(), 0.0),
zeroGradientFvPatchVectorField::typeName
)
);
volScalarField& N = tN();
N.internalField() = Nv.internalField()*Cw;
forAll(N, celli)
{
if (N[celli] > 1e-3)
{
Gtot[celli] += k1*mag(U[celli])/Lobs[celli];
}
}
return tGtot;
}
Foam::tmp<Foam::volScalarField> Foam::XiGModels::basicSubGrid::Db() const
{
const objectRegistry& db = Su_.db();
const volScalarField& Xi = db.lookupObject<volScalarField>("Xi");
const volScalarField& rho = db.lookupObject<volScalarField>("rho");
const volScalarField& mgb = db.lookupObject<volScalarField>("mgb");
const volScalarField& Lobs = db.lookupObject<volScalarField>("Lobs");
return XiGModel_->Db()
+ rho*Su_*(Xi - 1.0)*mgb*(0.5*Lobs)*Lobs/(mgb*Lobs + 1.0);
}
bool Foam::XiGModels::basicSubGrid::read(const dictionary& XiGProperties)
{
XiGModel::read(XiGProperties);
XiGModelCoeffs_.lookup("k1") >> k1;
return true;
}
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2013 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Class
Foam::XiGModels::basicSubGrid
Description
Basic sub-grid obstacle flame-wrinking generation rate coefficient model.
Details supplied by J Puttock 2/7/06.
\f$ G_{sub} \f$ denotes the generation coefficient and it is given by
\f[
G_{sub} = k_{1} /frac{\vert \dwea{\vec{U}} \vert}{L_{obs}}
\frac{/Xi_{{sub}_{eq}}-1}{/Xi_{sub}}
\f]
and the removal:
\f[
- k_{1} /frac{\vert \dwea{\vec{U}} \vert}{L_{sub}}
\frac{\Xi_{sub}-1}{\Xi_{sub}}
\f]
Finally, \f$ G_{sub} \f$ is added to generation rate \f$ G_{in} \f$
due to the turbulence.
SourceFiles
basicSubGrid.C
\*---------------------------------------------------------------------------*/
#ifndef basicSubGrid_H
#define basicSubGrid_H
#include "XiGModel.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace XiGModels
{
/*---------------------------------------------------------------------------*\
Class basicSubGrid Declaration
\*---------------------------------------------------------------------------*/
class basicSubGrid
:
public XiGModel
{
// Private data
//- Sub-grid generation rate coefficient
scalar k1;
//- Xi generation rate model due to turbulence
autoPtr<XiGModel> XiGModel_;
// Private Member Functions
//- Disallow copy construct
basicSubGrid(const basicSubGrid&);
//- Disallow default bitwise assignment
void operator=(const basicSubGrid&);
public:
//- Runtime type information
TypeName("basicSubGridG");
// Constructors
//- Construct from components
basicSubGrid
(
const dictionary& XiGProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su
);
//- Destructor
virtual ~basicSubGrid();
// Member Functions
//- Return the flame-wrinking generation rate
virtual tmp<volScalarField> G() const;
//- Return the flame diffusivity
virtual tmp<volScalarField> Db() const;
//- Update properties from given dictionary
virtual bool read(const dictionary& XiGProperties);
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace XiGModels
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "PDRDragModel.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
defineTypeNameAndDebug(PDRDragModel, 0);
defineRunTimeSelectionTable(PDRDragModel, dictionary);
};
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::PDRDragModel::PDRDragModel
(
const dictionary& PDRProperties,
const compressible::RASModel& turbulence,
const volScalarField& rho,
const volVectorField& U,
const surfaceScalarField& phi
)
:
regIOobject
(
IOobject
(
"PDRDragModel",
U.time().constant(),
U.db()
)
),
PDRDragModelCoeffs_
(
PDRProperties.subDict
(
word(PDRProperties.lookup("PDRDragModel")) + "Coeffs"
)
),
turbulence_(turbulence),
rho_(rho),
U_(U),
phi_(phi),
on_(PDRDragModelCoeffs_.lookup("drag"))
{}
// * * * * * * * * * * * * * * * * Destructors * * * * * * * * * * * * * * * //
Foam::PDRDragModel::~PDRDragModel()
{}
// * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
bool Foam::PDRDragModel::read(const dictionary& PDRProperties)
{
PDRDragModelCoeffs_ = PDRProperties.subDict(type() + "Coeffs");
PDRDragModelCoeffs_.lookup("drag") >> on_;
return true;
}
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Class
Foam::PDRDragModel
Description
Base-class for sub-grid obstacle drag models. The available drag model is at
\link basic.H \endlink.
SourceFiles
PDRDragModel.C
\*---------------------------------------------------------------------------*/
#ifndef PDRDragModel_H
#define PDRDragModel_H
#include "IOdictionary.H"
#include "psiuReactionThermo.H"
#include "RASModel.H"
#include "multivariateSurfaceInterpolationScheme.H"
#include "runTimeSelectionTables.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
/*---------------------------------------------------------------------------*\
Class PDRDragModel Declaration
\*---------------------------------------------------------------------------*/
class PDRDragModel
:
public regIOobject
{
protected:
// Protected data
dictionary PDRDragModelCoeffs_;
const compressible::RASModel& turbulence_;
const volScalarField& rho_;
const volVectorField& U_;
const surfaceScalarField& phi_;
Switch on_;
private:
// Private Member Functions
//- Disallow copy construct
PDRDragModel(const PDRDragModel&);
//- Disallow default bitwise assignment
void operator=(const PDRDragModel&);
public:
//- Runtime type information
TypeName("PDRDragModel");
// Declare run-time constructor selection table
declareRunTimeSelectionTable
(
autoPtr,
PDRDragModel,
dictionary,
(
const dictionary& PDRProperties,
const compressible::RASModel& turbulence,
const volScalarField& rho,
const volVectorField& U,
const surfaceScalarField& phi
),
(
PDRProperties,
turbulence,
rho,
U,
phi
)
);
// Selectors
//- Return a reference to the selected Xi model
static autoPtr<PDRDragModel> New
(
const dictionary& PDRProperties,
const compressible::RASModel& turbulence,
const volScalarField& rho,
const volVectorField& U,
const surfaceScalarField& phi
);
// Constructors
//- Construct from components
PDRDragModel
(
const dictionary& PDRProperties,
const compressible::RASModel& turbulence,
const volScalarField& rho,
const volVectorField& U,
const surfaceScalarField& phi
);
//- Destructor
virtual ~PDRDragModel();
// Member Functions
//- Return true if the drag model is switched on
bool on() const
{
return on_;
}
//- Return the momentum drag coefficient
virtual tmp<volSymmTensorField> Dcu() const = 0;
//- Return the momentum drag turbulence generation rate
virtual tmp<volScalarField> Gk() const = 0;
//- Update properties from given dictionary
virtual bool read(const dictionary& PDRProperties) = 0;
virtual bool writeData(Ostream&) const
{
return true;
}
virtual void writeFields() const
{
notImplemented("PDRDragModel::write()");
}
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "PDRDragModel.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Foam::autoPtr<Foam::PDRDragModel> Foam::PDRDragModel::New
(
const dictionary& PDRProperties,
const compressible::RASModel& turbulence,
const volScalarField& rho,
const volVectorField& U,
const surfaceScalarField& phi
)
{
const word modelType(PDRProperties.lookup("PDRDragModel"));
Info<< "Selecting flame-wrinkling model " << modelType << endl;
dictionaryConstructorTable::iterator cstrIter =
dictionaryConstructorTablePtr_->find(modelType);
if (cstrIter == dictionaryConstructorTablePtr_->end())
{
FatalErrorIn
(
"PDRDragModel::New"
) << "Unknown PDRDragModel type "
<< modelType << nl << nl
<< "Valid PDRDragModels are : " << endl
<< dictionaryConstructorTablePtr_->sortedToc()
<< exit(FatalError);
}
return autoPtr<PDRDragModel>
(cstrIter()(PDRProperties, turbulence, rho, U, phi));
}
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "basic.H"
#include "addToRunTimeSelectionTable.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
namespace PDRDragModels
{
defineTypeNameAndDebug(basic, 0);
addToRunTimeSelectionTable(PDRDragModel, basic, dictionary);
}
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::PDRDragModels::basic::basic
(
const dictionary& PDRProperties,
const compressible::RASModel& turbulence,
const volScalarField& rho,
const volVectorField& U,
const surfaceScalarField& phi
)
:
PDRDragModel(PDRProperties, turbulence, rho, U, phi),
Csu("Csu", dimless, PDRDragModelCoeffs_.lookup("Csu")),
Csk("Csk", dimless, PDRDragModelCoeffs_.lookup("Csk")),
Aw_
(
IOobject
(
"Aw",
U_.mesh().facesInstance(),
U_.mesh(),
IOobject::MUST_READ,
IOobject::NO_WRITE
),
U_.mesh()
),
CR_
(
IOobject
(
"CR",
U_.mesh().facesInstance(),
U_.mesh(),
IOobject::MUST_READ,
IOobject::NO_WRITE
),
U_.mesh()
)
{}
// * * * * * * * * * * * * * * * * Destructors * * * * * * * * * * * * * * * //
Foam::PDRDragModels::basic::~basic()
{}
// * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
Foam::tmp<Foam::volSymmTensorField> Foam::PDRDragModels::basic::Dcu() const
{
tmp<volSymmTensorField> tDragDcu
(
new volSymmTensorField
(
IOobject
(
"tDragDcu",
U_.mesh().time().constant(),
U_.mesh(),
IOobject::NO_READ,
IOobject::NO_WRITE
),
U_.mesh(),
dimensionedSymmTensor
(
"zero",
dimMass/dimTime/pow(dimLength, 3),
pTraits<symmTensor>::zero
),
zeroGradientFvPatchSymmTensorField::typeName
)
);
volSymmTensorField& DragDcu = tDragDcu();
if (on_)
{
const volScalarField& betav =
U_.db().lookupObject<volScalarField>("betav");
DragDcu =
(0.5*rho_)*CR_*mag(U_) + (Csu*I)*betav*turbulence_.muEff()*sqr(Aw_);
}
return tDragDcu;
}
Foam::tmp<Foam::volScalarField> Foam::PDRDragModels::basic::Gk() const
{
tmp<volScalarField> tGk
(
new volScalarField
(
IOobject
(
"tGk",
U_.mesh().time().constant(),
U_.mesh(),
IOobject::NO_READ,
IOobject::NO_WRITE
),
U_.mesh(),
dimensionedScalar("zero", dimMass/dimLength/pow(dimTime, 3), 0.0),
zeroGradientFvPatchVectorField::typeName
)
);
volScalarField& Gk = tGk();
if (on_)
{
const volScalarField& betav =
U_.db().lookupObject<volScalarField>("betav");
const volSymmTensorField& CT =
U_.db().lookupObject<volSymmTensorField>("CT");
Gk =
(0.5*rho_)*mag(U_)*(U_ & CT & U_)
+ Csk*betav*turbulence_.muEff()*sqr(Aw_)*magSqr(U_);
}
return tGk;
}
bool Foam::PDRDragModels::basic::read(const dictionary& PDRProperties)
{
PDRDragModel::read(PDRProperties);
PDRDragModelCoeffs_.lookup("Csu") >> Csu.value();
PDRDragModelCoeffs_.lookup("Csk") >> Csk.value();
return true;
}
void Foam::PDRDragModels::basic::writeFields() const
{
Aw_.write();
CR_.write();
}
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Class
Foam::PDRDragModels::basic
Description
Basic sub-grid obstacle drag model.
Details supplied by J Puttock 2/7/06.
<b> Sub-grid drag term </b>
The resistance term (force per unit of volume) is given by:
\f[
R = -\frac{1}{2} \rho \vert \dwea{\vec{U}} \vert \dwea{\vec{U}}.D
\f]
where:
\f$ D \f$ is the tensor field "CR" in \f$ m^{-1} \f$
This is term is treated implicitly in UEqn.H
<b> Sub-grid turbulence generation </b>
The turbulence source term \f$ G_{R} \f$ occurring in the
\f$ \kappa-\epsilon \f$ equations for the generation of turbulence due
to interaction with unresolved obstacles :
\f$ G_{R} = C_{s}\beta_{\nu}
\mu_{eff} A_{w}^{2}(\dwea{\vec{U}}-\dwea{\vec{U}_{s}})^2 + \frac{1}{2}
\rho \vert \dwea{\vec{U}} \vert \dwea{\vec{U}}.T.\dwea{\vec{U}} \f$
where:
\f$ C_{s} \f$ = 1
\f$ \beta_{\nu} \f$ is the volume porosity (file "betav").
\f$ \mu_{eff} \f$ is the effective viscosity.
\f$ A_{w}^{2}\f$ is the obstacle surface area per unit of volume
(file "Aw").
\f$ \dwea{\vec{U}_{s}} \f$ is the slip velocity and is considered
\f$ \frac{1}{2}. \dwea{\vec{U}} \f$.
\f$ T \f$ is a tensor in the file CT.
The term \f$ G_{R} \f$ is treated explicitly in the \f$ \kappa-\epsilon
\f$ Eqs in the \link PDRkEpsilon.C \endlink file.
SourceFiles
basic.C
\*---------------------------------------------------------------------------*/
#ifndef basic_H
#define basic_H
#include "PDRDragModel.H"
#include "XiEqModel.H"
namespace Foam
{
namespace PDRDragModels
{
/*---------------------------------------------------------------------------*\
Class basic Declaration
\*---------------------------------------------------------------------------*/
class basic
:
public PDRDragModel
{
// Private data
dimensionedScalar Csu;
dimensionedScalar Csk;
volScalarField Aw_;
volSymmTensorField CR_;
// Private Member Functions
//- Disallow copy construct
basic(const basic&);
//- Disallow default bitwise assignment
void operator=(const basic&);
public:
//- Runtime type information
TypeName("basic");
// Constructors
//- Construct from components
basic
(
const dictionary& PDRProperties,
const compressible::RASModel& turbulence,
const volScalarField& rho,
const volVectorField& U,
const surfaceScalarField& phi
);
//- Destructor
virtual ~basic();
// Member Functions
//- Return the momentum drag coefficient
virtual tmp<volSymmTensorField> Dcu() const;
//- Return the momentum drag turbulence generation rate
virtual tmp<volScalarField> Gk() const;
//- Update properties from given dictionary
virtual bool read(const dictionary& PDRProperties);
//- Write fields
void writeFields() const;
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace PDRDragModels
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2013 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "PDRkEpsilon.H"
#include "PDRDragModel.H"
#include "addToRunTimeSelectionTable.H"
#include "backwardsCompatibilityWallFunctions.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace compressible
{
namespace RASModels
{
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
defineTypeNameAndDebug(PDRkEpsilon, 0);
addToRunTimeSelectionTable(RASModel, PDRkEpsilon, dictionary);
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
PDRkEpsilon::PDRkEpsilon
(
const volScalarField& rho,
const volVectorField& U,
const surfaceScalarField& phi,
const fluidThermo& thermophysicalModel,
const word& turbulenceModelName,
const word& modelName
)
:
kEpsilon(rho, U, phi, thermophysicalModel, turbulenceModelName, modelName),
C4_
(
dimensioned<scalar>::lookupOrAddToDict
(
"C4",
coeffDict_,
0.1
)
)
{}
// * * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * //
PDRkEpsilon::~PDRkEpsilon()
{}
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
bool PDRkEpsilon::read()
{
if (RASModel::read())
{
C4_.readIfPresent(coeffDict_);
return true;
}
else
{
return false;
}
}
void PDRkEpsilon::correct()
{
if (!turbulence_)
{
// Re-calculate viscosity
mut_ = rho_*Cmu_*sqr(k_)/epsilon_;
mut_.correctBoundaryConditions();
// Re-calculate thermal diffusivity
alphat_ = mut_/Prt_;
alphat_.correctBoundaryConditions();
return;
}
RASModel::correct();
volScalarField divU(fvc::div(phi_/fvc::interpolate(rho_)));
if (mesh_.moving())
{
divU += fvc::div(mesh_.phi());
}
tmp<volTensorField> tgradU = fvc::grad(U_);
volScalarField G(GName(), mut_*(tgradU() && dev(twoSymm(tgradU()))));
tgradU.clear();
// Update espsilon and G at the wall
epsilon_.boundaryField().updateCoeffs();
// Add the blockage generation term so that it is included consistently
// in both the k and epsilon equations
const volScalarField& betav =
U_.db().lookupObject<volScalarField>("betav");
const volScalarField& Lobs =
U_.db().lookupObject<volScalarField>("Lobs");
const PDRDragModel& drag =
U_.db().lookupObject<PDRDragModel>("PDRDragModel");
volScalarField GR(drag.Gk());
volScalarField LI
(C4_*(Lobs + dimensionedScalar("minLength", dimLength, VSMALL)));
// Dissipation equation
tmp<fvScalarMatrix> epsEqn
(
betav*fvm::ddt(rho_, epsilon_)
+ fvm::div(phi_, epsilon_)
- fvm::laplacian(DepsilonEff(), epsilon_)
==
C1_*betav*G*epsilon_/k_
+ 1.5*pow(Cmu_, 3.0/4.0)*GR*sqrt(k_)/LI
- fvm::SuSp(((2.0/3.0)*C1_)*betav*rho_*divU, epsilon_)
- fvm::Sp(C2_*betav*rho_*epsilon_/k_, epsilon_)
);
epsEqn().relax();
epsEqn().boundaryManipulate(epsilon_.boundaryField());
solve(epsEqn);
bound(epsilon_, epsilonMin_);
// Turbulent kinetic energy equation
tmp<fvScalarMatrix> kEqn
(
betav*fvm::ddt(rho_, k_)
+ fvm::div(phi_, k_)
- fvm::laplacian(DkEff(), k_)
==
betav*G + GR
- fvm::SuSp((2.0/3.0)*betav*rho_*divU, k_)
- fvm::Sp(betav*rho_*epsilon_/k_, k_)
);
kEqn().relax();
solve(kEqn);
bound(k_, kMin_);
// Re-calculate viscosity
mut_ = rho_*Cmu_*sqr(k_)/epsilon_;
mut_.correctBoundaryConditions();
// Re-calculate thermal diffusivity
alphat_ = mut_/Prt_;
alphat_.correctBoundaryConditions();
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace RASModels
} // End namespace compressible
} // End namespace Foam
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Class
Foam::compressible::RASModels::PDRkEpsilon
Description
Standard k-epsilon turbulence model with additional source terms
corresponding to PDR basic drag model (\link basic.H \endlink)
The default model coefficients correspond to the following:
@verbatim
PDRkEpsilonCoeffs
{
Cmu 0.09;
C1 1.44;
C2 1.92;
C3 -0.33; // only for compressible
C4 0.1;
sigmak 1.0; // only for compressible
sigmaEps 1.3;
Prt 1.0; // only for compressible
}
@endverbatim
The turbulence source term \f$ G_{R} \f$ appears in the
\f$ \kappa-\epsilon \f$ equation for the generation of turbulence due to
interaction with unresolved obstacles.
In the \f$ \epsilon \f$ equation \f$ C_{1} G_{R} \f$ is added as a source
term.
In the \f$ \kappa \f$ equation \f$ G_{R} \f$ is added as a source term.
SourceFiles
PDRkEpsilon.C
\*---------------------------------------------------------------------------*/
#ifndef compressiblePDRkEpsilon_H
#define compressiblePDRkEpsilon_H
#include "kEpsilon.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace compressible
{
namespace RASModels
{
/*---------------------------------------------------------------------------*\
Class PDRkEpsilon Declaration
\*---------------------------------------------------------------------------*/
class PDRkEpsilon
:
public kEpsilon
{
// Private data
// Model coefficients
dimensionedScalar C4_;
public:
//- Runtime type information
TypeName("PDRkEpsilon");
// Constructors
//- Construct from components
PDRkEpsilon
(
const volScalarField& rho,
const volVectorField& U,
const surfaceScalarField& phi,
const fluidThermo& thermophysicalModel,
const word& turbulenceModelName = turbulenceModel::typeName,
const word& modelName = typeName
);
//- Destructor
virtual ~PDRkEpsilon();
// Member Functions
//- Solve the turbulence equations and correct the turbulence viscosity
void correct();
//- Read turbulenceProperties dictionary
bool read();
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace RASModels
} // End namespace compressible
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Global
CourantNo
Description
Calculates and outputs the mean and maximum Courant Numbers.
\*---------------------------------------------------------------------------*/
{
scalar meanStCoNum = 0.0;
if (mesh.nInternalFaces())
{
scalarField sumPhi
(
fvc::surfaceSum(mag(phiSt))().internalField()
/ rho.internalField()
);
StCoNum = 0.5*gMax(sumPhi/mesh.V().field())*runTime.deltaTValue();
meanStCoNum =
0.5*(gSum(sumPhi)/gSum(mesh.V().field()))*runTime.deltaTValue();
}
Info<< "St courant Number mean: " << meanStCoNum
<< " max: " << StCoNum << endl;
}
// ************************************************************************* //

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fvVectorMatrix UEqn
(
betav*fvm::ddt(rho, U)
+ fvm::div(phi, U)
+ turbulence->divDevRhoReff(U)
==
betav*rho*g
);
volSymmTensorField invA(inv(I*UEqn.A() + drag->Dcu()));
if (pimple.momentumPredictor())
{
U = invA & (UEqn.H() - betav*fvc::grad(p));
U.correctBoundaryConditions();
K = 0.5*magSqr(U);
}

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "Gulder.H"
#include "addToRunTimeSelectionTable.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
namespace XiEqModels
{
defineTypeNameAndDebug(Gulder, 0);
addToRunTimeSelectionTable(XiEqModel, Gulder, dictionary);
}
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::XiEqModels::Gulder::Gulder
(
const dictionary& XiEqProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su
)
:
XiEqModel(XiEqProperties, thermo, turbulence, Su),
XiEqCoef_(readScalar(XiEqModelCoeffs_.lookup("XiEqCoef"))),
SuMin_(0.01*Su.average()),
uPrimeCoef_(readScalar(XiEqModelCoeffs_.lookup("uPrimeCoef"))),
subGridSchelkin_
(
readBool(XiEqModelCoeffs_.lookup("subGridSchelkin"))
)
{}
// * * * * * * * * * * * * * * * * Destructors * * * * * * * * * * * * * * * //
Foam::XiEqModels::Gulder::~Gulder()
{}
// * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
Foam::tmp<Foam::volScalarField> Foam::XiEqModels::Gulder::XiEq() const
{
volScalarField up(sqrt((2.0/3.0)*turbulence_.k()));
const volScalarField& epsilon = turbulence_.epsilon();
if (subGridSchelkin_)
{
up.internalField() += calculateSchelkinEffect(uPrimeCoef_);
}
volScalarField tauEta(sqrt(mag(thermo_.muu()/(thermo_.rhou()*epsilon))));
volScalarField Reta
(
up
/ (
sqrt(epsilon*tauEta)
+ dimensionedScalar("1e-8", up.dimensions(), 1e-8)
)
);
return (1.0 + XiEqCoef_*sqrt(up/(Su_ + SuMin_))*Reta);
}
bool Foam::XiEqModels::Gulder::read(const dictionary& XiEqProperties)
{
XiEqModel::read(XiEqProperties);
XiEqModelCoeffs_.lookup("XiEqCoef") >> XiEqCoef_;
XiEqModelCoeffs_.lookup("uPrimeCoef") >> uPrimeCoef_;
XiEqModelCoeffs_.lookup("subGridSchelkin") >> subGridSchelkin_;
return true;
}
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Class
Foam::XiEqModels::Gulder
Description
Simple Gulder model for XiEq based on Gulders correlation
with a linear correction function to give a plausible profile for XiEq.
SourceFiles
Gulder.C
\*---------------------------------------------------------------------------*/
#ifndef Gulder_H
#define Gulder_H
#include "XiEqModel.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace XiEqModels
{
/*---------------------------------------------------------------------------*\
Class Gulder Declaration
\*---------------------------------------------------------------------------*/
class Gulder
:
public XiEqModel
{
// Private data
//- Model constant
scalar XiEqCoef_;
//- Minimum laminar burning velocity
const dimensionedScalar SuMin_;
//- Schelkin effect Model constant
scalar uPrimeCoef_;
//- Use sub-grid Schelkin effect
bool subGridSchelkin_;
// Private Member Functions
//- Disallow copy construct
Gulder(const Gulder&);
//- Disallow default bitwise assignment
void operator=(const Gulder&);
public:
//- Runtime type information
TypeName("Gulder");
// Constructors
//- Construct from components
Gulder
(
const dictionary& XiEqProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su
);
//- Destructor
virtual ~Gulder();
// Member Functions
//- Return the flame-wrinking XiEq
virtual tmp<volScalarField> XiEq() const;
//- Update properties from given dictionary
virtual bool read(const dictionary& XiEqProperties);
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace XiEqModels
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "SCOPEBlendXiEq.H"
#include "addToRunTimeSelectionTable.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
namespace XiEqModels
{
defineTypeNameAndDebug(SCOPEBlend, 0);
addToRunTimeSelectionTable(XiEqModel, SCOPEBlend, dictionary);
}
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::XiEqModels::SCOPEBlend::SCOPEBlend
(
const dictionary& XiEqProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su
)
:
XiEqModel(XiEqProperties, thermo, turbulence, Su),
XiEqModelL_
(
XiEqModel::New
(
XiEqModelCoeffs_.subDict("XiEqModelL"),
thermo,
turbulence,
Su
)
),
XiEqModelH_
(
XiEqModel::New
(
XiEqModelCoeffs_.subDict("XiEqModelH"),
thermo,
turbulence,
Su
)
)
{}
// * * * * * * * * * * * * * * * * Destructors * * * * * * * * * * * * * * * //
Foam::XiEqModels::SCOPEBlend::~SCOPEBlend()
{}
// * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
Foam::tmp<Foam::volScalarField> Foam::XiEqModels::SCOPEBlend::XiEq() const
{
return pow
(
pow4(1.0/XiEqModelL_->XiEq()) + pow4(1.0/XiEqModelH_->XiEq()),
-0.25
);
}
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Class
Foam::XiEqModels::SCOPEBlend
Description
Simple SCOPEBlendXiEq model for XiEq based on SCOPEXiEqs correlation
with a linear correction function to give a plausible profile for XiEq.
See @link SCOPELaminarFlameSpeed.H @endlink for details on the SCOPE
laminar flame speed model.
SourceFiles
SCOPEBlend.C
\*---------------------------------------------------------------------------*/
#ifndef SCOPEBlend_H
#define SCOPEBlend_H
#include "XiEqModel.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace XiEqModels
{
/*---------------------------------------------------------------------------*\
Class SCOPEBlend Declaration
\*---------------------------------------------------------------------------*/
class SCOPEBlend
:
public XiEqModel
{
// Private data
//- Low turbulence intensity equilibrium Xi model
autoPtr<XiEqModel> XiEqModelL_;
//- High turbulence intensity equilibrium Xi model
autoPtr<XiEqModel> XiEqModelH_;
// Private Member Functions
//- Disallow copy construct
SCOPEBlend(const SCOPEBlend&);
//- Disallow default bitwise assignment
void operator=(const SCOPEBlend&);
public:
//- Runtime type information
TypeName("SCOPEBlend");
// Constructors
//- Construct from components
SCOPEBlend
(
const dictionary& XiEqProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su
);
//- Destructor
virtual ~SCOPEBlend();
// Member Functions
//- Return the flame-wrinking XiEq
virtual tmp<volScalarField> XiEq() const;
//- Update properties from given dictionary
virtual bool read(const dictionary& XiEqProperties)
{
return true;
}
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace XiEqModels
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "SCOPEXiEq.H"
#include "addToRunTimeSelectionTable.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
namespace XiEqModels
{
defineTypeNameAndDebug(SCOPEXiEq, 0);
addToRunTimeSelectionTable(XiEqModel, SCOPEXiEq, dictionary);
}
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::XiEqModels::SCOPEXiEq::SCOPEXiEq
(
const dictionary& XiEqProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su
)
:
XiEqModel(XiEqProperties, thermo, turbulence, Su),
XiEqCoef_(readScalar(XiEqModelCoeffs_.lookup("XiEqCoef"))),
XiEqExp_(readScalar(XiEqModelCoeffs_.lookup("XiEqExp"))),
lCoef_(readScalar(XiEqModelCoeffs_.lookup("lCoef"))),
SuMin_(0.01*Su.average()),
uPrimeCoef_(readScalar(XiEqModelCoeffs_.lookup("uPrimeCoef"))),
subGridSchelkin_
(
readBool(XiEqModelCoeffs_.lookup("subGridSchelkin"))
),
MaModel
(
IOdictionary
(
IOobject
(
"combustionProperties",
Su.mesh().time().constant(),
Su.mesh(),
IOobject::MUST_READ
)
),
thermo
)
{}
// * * * * * * * * * * * * * * * * Destructors * * * * * * * * * * * * * * * //
Foam::XiEqModels::SCOPEXiEq::~SCOPEXiEq()
{}
// * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
Foam::tmp<Foam::volScalarField> Foam::XiEqModels::SCOPEXiEq::XiEq() const
{
const volScalarField& k = turbulence_.k();
const volScalarField& epsilon = turbulence_.epsilon();
volScalarField up(sqrt((2.0/3.0)*k));
if (subGridSchelkin_)
{
up.internalField() += calculateSchelkinEffect(uPrimeCoef_);
}
volScalarField l(lCoef_*sqrt(3.0/2.0)*up*k/epsilon);
volScalarField Rl(up*l*thermo_.rhou()/thermo_.muu());
volScalarField upBySu(up/(Su_ + SuMin_));
volScalarField K(0.157*upBySu/sqrt(Rl));
volScalarField Ma(MaModel.Ma());
tmp<volScalarField> tXiEq
(
new volScalarField
(
IOobject
(
"XiEq",
epsilon.time().timeName(),
epsilon.db(),
IOobject::NO_READ,
IOobject::NO_WRITE
),
epsilon.mesh(),
dimensionedScalar("XiEq", dimless, 0.0)
)
);
volScalarField& xieq = tXiEq();
forAll(xieq, celli)
{
if (Ma[celli] > 0.01)
{
xieq[celli] =
XiEqCoef_*pow(K[celli]*Ma[celli], -XiEqExp_)*upBySu[celli];
}
}
forAll(xieq.boundaryField(), patchi)
{
scalarField& xieqp = xieq.boundaryField()[patchi];
const scalarField& Kp = K.boundaryField()[patchi];
const scalarField& Map = Ma.boundaryField()[patchi];
const scalarField& upBySup = upBySu.boundaryField()[patchi];
forAll(xieqp, facei)
{
if (Ma[facei] > 0.01)
{
xieqp[facei] =
XiEqCoef_*pow(Kp[facei]*Map[facei], -XiEqExp_)
*upBySup[facei];
}
}
}
return tXiEq;
}
bool Foam::XiEqModels::SCOPEXiEq::read(const dictionary& XiEqProperties)
{
XiEqModel::read(XiEqProperties);
XiEqModelCoeffs_.lookup("XiEqCoef") >> XiEqCoef_;
XiEqModelCoeffs_.lookup("XiEqExp") >> XiEqExp_;
XiEqModelCoeffs_.lookup("lCoef") >> lCoef_;
XiEqModelCoeffs_.lookup("uPrimeCoef") >> uPrimeCoef_;
XiEqModelCoeffs_.lookup("subGridSchelkin") >> subGridSchelkin_;
return true;
}
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2013 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Class
Foam::XiEqModels::SCOPEXiEq
Description
Simple SCOPEXiEq model for XiEq based on SCOPEXiEqs correlation
with a linear correction function to give a plausible profile for XiEq.
See \link SCOPELaminarFlameSpeed.H \endlink for details on the SCOPE laminar
flame speed model.
SourceFiles
SCOPEXiEq.C
\*---------------------------------------------------------------------------*/
#ifndef SCOPEXiEq_H
#define SCOPEXiEq_H
#include "XiEqModel.H"
#include "SCOPELaminarFlameSpeed.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace XiEqModels
{
/*---------------------------------------------------------------------------*\
Class SCOPEXiEq Declaration
\*---------------------------------------------------------------------------*/
class SCOPEXiEq
:
public XiEqModel
{
// Private data
// Model constant
scalar XiEqCoef_;
// Model constant
scalar XiEqExp_;
// Model constant
scalar lCoef_;
//- Minimum Su
dimensionedScalar SuMin_;
//- Schelkin effect Model constant
scalar uPrimeCoef_;
//- Use sub-grid Schelkin effect
bool subGridSchelkin_;
//- The SCOPE laminar flame speed model used to obtain the
// Marstein number. Note: the laminar flame speed need not be
// obtained form the same model.
laminarFlameSpeedModels::SCOPE MaModel;
// Private Member Functions
//- Disallow copy construct
SCOPEXiEq(const SCOPEXiEq&);
//- Disallow default bitwise assignment
void operator=(const SCOPEXiEq&);
public:
//- Runtime type information
TypeName("SCOPEXiEq");
// Constructors
//- Construct from components
SCOPEXiEq
(
const dictionary& XiEqProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su
);
//- Destructor
virtual ~SCOPEXiEq();
// Member Functions
//- Return the flame-wrinking XiEq
virtual tmp<volScalarField> XiEq() const;
//- Update properties from given dictionary
virtual bool read(const dictionary& XiEqProperties);
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace XiEqModels
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "XiEqModel.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
defineTypeNameAndDebug(XiEqModel, 0);
defineRunTimeSelectionTable(XiEqModel, dictionary);
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::XiEqModel::XiEqModel
(
const dictionary& XiEqProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su
)
:
XiEqModelCoeffs_
(
XiEqProperties.subDict
(
word(XiEqProperties.lookup("XiEqModel")) + "Coeffs"
)
),
thermo_(thermo),
turbulence_(turbulence),
Su_(Su),
Nv_
(
IOobject
(
"Nv",
Su.mesh().facesInstance(),
Su.mesh(),
IOobject::MUST_READ,
IOobject::NO_WRITE
),
Su.mesh()
),
nsv_
(
IOobject
(
"nsv",
Su.mesh().facesInstance(),
Su.mesh(),
IOobject::MUST_READ,
IOobject::NO_WRITE
),
Su.mesh()
)
{}
// * * * * * * * * * * * * * * * * Destructors * * * * * * * * * * * * * * * //
Foam::XiEqModel::~XiEqModel()
{}
// * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
bool Foam::XiEqModel::read(const dictionary& XiEqProperties)
{
XiEqModelCoeffs_ = XiEqProperties.subDict(type() + "Coeffs");
return true;
}
void Foam::XiEqModel::writeFields() const
{
Nv_.write();
nsv_.write();
if (Su_.mesh().foundObject<volSymmTensorField>("B"))
{
const volSymmTensorField& B =
Su_.mesh().lookupObject<volSymmTensorField>("B");
B.write();
}
}
Foam::tmp<Foam::volScalarField>
Foam::XiEqModel::calculateSchelkinEffect(const scalar uPrimeCoef) const
{
const fvMesh& mesh = Su_.mesh();
const volVectorField& U = mesh.lookupObject<volVectorField>("U");
const volSymmTensorField& CT = mesh.lookupObject<volSymmTensorField>("CT");
const volScalarField& Nv = mesh.lookupObject<volScalarField>("Nv");
const volSymmTensorField& nsv =
mesh.lookupObject<volSymmTensorField>("nsv");
tmp<volScalarField> tN
(
new volScalarField
(
IOobject
(
"tN",
mesh.time().timeName(),
mesh,
IOobject::NO_READ,
IOobject::NO_WRITE,
false
),
mesh,
dimensionedScalar("zero", Nv.dimensions(), 0.0),
zeroGradientFvPatchVectorField::typeName
)
);
volScalarField& N = tN();
N.internalField() = Nv.internalField()*pow(mesh.V(), 2.0/3.0);
tmp<volSymmTensorField> tns
(
new volSymmTensorField
(
IOobject
(
"tns",
mesh.time().timeName(),
mesh,
IOobject::NO_READ,
IOobject::NO_WRITE
),
mesh,
dimensionedSymmTensor
(
"zero",
nsv.dimensions(),
pTraits<symmTensor>::zero
)
)
);
volSymmTensorField& ns = tns();
ns.internalField() = nsv.internalField()*pow(mesh.V(), 2.0/3.0);
const volVectorField Uhat
(
U/(mag(U) + dimensionedScalar("Usmall", U.dimensions(), 1e-4))
);
const volScalarField nr(sqrt(max(N - (Uhat & ns & Uhat), scalar(1e-4))));
const scalarField cellWidth(pow(mesh.V(), 1.0/3.0));
const scalarField upLocal(uPrimeCoef*sqrt((U & CT & U)*cellWidth));
const scalarField deltaUp(upLocal*(max(scalar(1.0), pow(nr, 0.5)) - 1.0));
//Re use tN
N.internalField() = upLocal*(max(scalar(1.0), pow(nr, 0.5)) - 1.0);
return tN;
}
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Class
Foam::XiEqModel
Description
Base-class for all XiEq models used by the b-XiEq combustion model.
The available models are :
\link basicXiSubXiEq.H \endlink
\link Gulder.H \endlink
\link instabilityXiEq.H \endlink
\link SCOPEBlendXiEq.H \endlink
\link SCOPEXiEq.H \endlink
SourceFiles
XiEqModel.C
\*---------------------------------------------------------------------------*/
#ifndef XiEqModel_H
#define XiEqModel_H
#include "IOdictionary.H"
#include "psiuReactionThermo.H"
#include "RASModel.H"
#include "runTimeSelectionTables.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
/*---------------------------------------------------------------------------*\
Class XiEqModel Declaration
\*---------------------------------------------------------------------------*/
class XiEqModel
{
protected:
// Protected data
//- Dictionary
dictionary XiEqModelCoeffs_;
//- Thermo
const psiuReactionThermo& thermo_;
//- Turbulence
const compressible::RASModel& turbulence_;
//- Laminar burning velocity
const volScalarField& Su_;
//- Volumetric obstacles number
volScalarField Nv_;
//
volSymmTensorField nsv_;
private:
// Private Member Functions
//- Disallow copy construct
XiEqModel(const XiEqModel&);
//- Disallow default bitwise assignment
void operator=(const XiEqModel&);
public:
//- Runtime type information
TypeName("XiEqModel");
// Declare run-time constructor selection table
declareRunTimeSelectionTable
(
autoPtr,
XiEqModel,
dictionary,
(
const dictionary& XiEqProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su
),
(
XiEqProperties,
thermo,
turbulence,
Su
)
);
// Selectors
//- Return a reference to the selected XiEq model
static autoPtr<XiEqModel> New
(
const dictionary& XiEqProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su
);
// Constructors
//- Construct from components
XiEqModel
(
const dictionary& XiEqProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su
);
//- Destructor
virtual ~XiEqModel();
// Member Functions
//- Return the flame-wrinking XiEq
virtual tmp<volScalarField> XiEq() const
{
return turbulence_.muEff();
}
//- Return the sub-grid Schelkin effect
tmp<volScalarField> calculateSchelkinEffect(const scalar) const;
//- Update properties from given dictionary
virtual bool read(const dictionary& XiEqProperties) = 0;
//- Write fields
void writeFields() const;
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "XiEqModel.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Foam::autoPtr<Foam::XiEqModel> Foam::XiEqModel::New
(
const dictionary& propDict,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su
)
{
const word modelType(propDict.lookup("XiEqModel"));
Info<< "Selecting flame-wrinkling model " << modelType << endl;
dictionaryConstructorTable::iterator cstrIter =
dictionaryConstructorTablePtr_->find(modelType);
if (cstrIter == dictionaryConstructorTablePtr_->end())
{
FatalErrorIn
(
"XiEqModel::New"
"("
" const psiuReactionThermo& thermo,"
" const compressible::RASModel& turbulence,"
" const volScalarField& Su"
")"
) << "Unknown XiEqModel type "
<< modelType << nl << nl
<< "Valid XiEqModels are : " << endl
<< dictionaryConstructorTablePtr_->sortedToc()
<< exit(FatalError);
}
return autoPtr<XiEqModel>(cstrIter()(propDict, thermo, turbulence, Su));
}
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "instabilityXiEq.H"
#include "addToRunTimeSelectionTable.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
namespace XiEqModels
{
defineTypeNameAndDebug(instability, 0);
addToRunTimeSelectionTable(XiEqModel, instability, dictionary);
}
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::XiEqModels::instability::instability
(
const dictionary& XiEqProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su
)
:
XiEqModel(XiEqProperties, thermo, turbulence, Su),
XiEqIn(readScalar(XiEqModelCoeffs_.lookup("XiEqIn"))),
XiEqModel_(XiEqModel::New(XiEqModelCoeffs_, thermo, turbulence, Su))
{}
// * * * * * * * * * * * * * * * * Destructors * * * * * * * * * * * * * * * //
Foam::XiEqModels::instability::~instability()
{}
// * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
Foam::tmp<Foam::volScalarField> Foam::XiEqModels::instability::XiEq() const
{
volScalarField turbXiEq(XiEqModel_->XiEq());
return XiEqIn/turbXiEq + turbXiEq;
}
bool Foam::XiEqModels::instability::read(const dictionary& XiEqProperties)
{
XiEqModel::read(XiEqProperties);
XiEqModelCoeffs_.lookup("XiEqIn") >> XiEqIn;
return XiEqModel_->read(XiEqModelCoeffs_);
}
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Class
Foam::XiEqModels::instability
Description
This is the equilibrium level of the flame wrinkling generated by
instability. It is a constant (default 2.5). It is used in
@link XiModel.H @endlink.
SourceFiles
instability.C
\*---------------------------------------------------------------------------*/
#ifndef instability_H
#define instability_H
#include "XiEqModel.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace XiEqModels
{
/*---------------------------------------------------------------------------*\
Class instability Declaration
\*---------------------------------------------------------------------------*/
class instability
:
public XiEqModel
{
// Private data
//- Equilibrium Xi due to instability only
scalar XiEqIn;
//- Equilibrium Xi model due to all other effects
autoPtr<XiEqModel> XiEqModel_;
// Private Member Functions
//- Disallow copy construct
instability(const instability&);
//- Disallow default bitwise assignment
void operator=(const instability&);
public:
//- Runtime type information
TypeName("instability");
// Constructors
//- Construct from components
instability
(
const dictionary& XiEqProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su
);
//- Destructor
virtual ~instability();
// Member Functions
//- Return the flame-wrinking XiEq
virtual tmp<volScalarField> XiEq() const;
//- Update properties from given dictionary
virtual bool read(const dictionary& XiEqProperties);
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace XiEqModels
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "KTS.H"
#include "addToRunTimeSelectionTable.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
namespace XiGModels
{
defineTypeNameAndDebug(KTS, 0);
addToRunTimeSelectionTable(XiGModel, KTS, dictionary);
}
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::XiGModels::KTS::KTS
(
const dictionary& XiGProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su
)
:
XiGModel(XiGProperties, thermo, turbulence, Su),
GEtaCoef_(readScalar(XiGModelCoeffs_.lookup("GEtaCoef")))
{}
// * * * * * * * * * * * * * * * * Destructors * * * * * * * * * * * * * * * //
Foam::XiGModels::KTS::~KTS()
{}
// * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
Foam::tmp<Foam::volScalarField> Foam::XiGModels::KTS::G() const
{
volScalarField up(sqrt((2.0/3.0)*turbulence_.k()));
const volScalarField& epsilon = turbulence_.epsilon();
volScalarField tauEta(sqrt(mag(thermo_.muu()/(thermo_.rhou()*epsilon))));
return (GEtaCoef_/tauEta);
}
bool Foam::XiGModels::KTS::read(const dictionary& XiGProperties)
{
XiGModel::read(XiGProperties);
XiGModelCoeffs_.lookup("GEtaCoef") >> GEtaCoef_;
return true;
}
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Class
Foam::XiGModels::KTS
Description
Simple Kolmogorov time-scale (KTS) model for the flame-wrinling generation
rate.
SourceFiles
KTS.C
\*---------------------------------------------------------------------------*/
#ifndef KTS_H
#define KTS_H
#include "XiGModel.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace XiGModels
{
/*---------------------------------------------------------------------------*\
Class KTS Declaration
\*---------------------------------------------------------------------------*/
class KTS
:
public XiGModel
{
// Private data
scalar GEtaCoef_;
// Private Member Functions
//- Disallow copy construct
KTS(const KTS&);
//- Disallow default bitwise assignment
void operator=(const KTS&);
public:
//- Runtime type information
TypeName("KTS");
// Constructors
//- Construct from components
KTS
(
const dictionary& XiGProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su
);
//- Destructor
virtual ~KTS();
// Member Functions
//- Return the flame-wrinking generation rate
virtual tmp<volScalarField> G() const;
//- Update properties from given dictionary
virtual bool read(const dictionary& XiGProperties);
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace XiGModels
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "XiGModel.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
defineTypeNameAndDebug(XiGModel, 0);
defineRunTimeSelectionTable(XiGModel, dictionary);
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::XiGModel::XiGModel
(
const dictionary& XiGProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su
)
:
XiGModelCoeffs_
(
XiGProperties.subDict
(
word(XiGProperties.lookup("XiGModel")) + "Coeffs"
)
),
thermo_(thermo),
turbulence_(turbulence),
Su_(Su)
{}
// * * * * * * * * * * * * * * * * Destructors * * * * * * * * * * * * * * * //
Foam::XiGModel::~XiGModel()
{}
// * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
bool Foam::XiGModel::read(const dictionary& XiGProperties)
{
XiGModelCoeffs_ = XiGProperties.subDict(type() + "Coeffs");
return true;
}
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Class
Foam::XiGModel
Description
Base-class for all Xi generation models used by the b-Xi combustion model.
See Technical Report SH/RE/01R for details on the PDR modelling. For details
on the use of XiGModel see \link XiModel.H \endlink. The model available is
\link instabilityG.H \endlink
SourceFiles
XiGModel.C
\*---------------------------------------------------------------------------*/
#ifndef XiGModel_H
#define XiGModel_H
#include "IOdictionary.H"
#include "psiuReactionThermo.H"
#include "RASModel.H"
#include "runTimeSelectionTables.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
/*---------------------------------------------------------------------------*\
Class XiGModel Declaration
\*---------------------------------------------------------------------------*/
class XiGModel
{
protected:
// Protected data
dictionary XiGModelCoeffs_;
const psiuReactionThermo& thermo_;
const compressible::RASModel& turbulence_;
const volScalarField& Su_;
private:
// Private Member Functions
//- Disallow copy construct
XiGModel(const XiGModel&);
//- Disallow default bitwise assignment
void operator=(const XiGModel&);
public:
//- Runtime type information
TypeName("XiGModel");
// Declare run-time constructor selection table
declareRunTimeSelectionTable
(
autoPtr,
XiGModel,
dictionary,
(
const dictionary& XiGProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su
),
(
XiGProperties,
thermo,
turbulence,
Su
)
);
// Selectors
//- Return a reference to the selected XiG model
static autoPtr<XiGModel> New
(
const dictionary& XiGProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su
);
// Constructors
//- Construct from components
XiGModel
(
const dictionary& XiGProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su
);
//- Destructor
virtual ~XiGModel();
// Member Functions
//- Return the flame-wrinking genration rate
virtual tmp<volScalarField> G() const = 0;
//- Return the flame diffusivity
virtual tmp<volScalarField> Db() const
{
return turbulence_.muEff();
}
//- Update properties from given dictionary
virtual bool read(const dictionary& XiGProperties) = 0;
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "XiGModel.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Foam::autoPtr<Foam::XiGModel> Foam::XiGModel::New
(
const dictionary& propDict,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su
)
{
const word modelType(propDict.lookup("XiGModel"));
Info<< "Selecting flame-wrinkling model " << modelType << endl;
dictionaryConstructorTable::iterator cstrIter =
dictionaryConstructorTablePtr_->find(modelType);
if (cstrIter == dictionaryConstructorTablePtr_->end())
{
FatalErrorIn
(
"XiGModel::New"
"("
" const psiuReactionThermo& thermo,"
" const compressible::RASModel& turbulence,"
" const volScalarField& Su"
")"
) << "Unknown XiGModel type "
<< modelType << nl << nl
<< "Valid XiGModels are : " << endl
<< dictionaryConstructorTablePtr_->sortedToc()
<< exit(FatalError);
}
return autoPtr<XiGModel>(cstrIter()(propDict, thermo, turbulence, Su));
}
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "instabilityG.H"
#include "addToRunTimeSelectionTable.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
namespace XiGModels
{
defineTypeNameAndDebug(instabilityG, 0);
addToRunTimeSelectionTable(XiGModel, instabilityG, dictionary);
}
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::XiGModels::instabilityG::instabilityG
(
const dictionary& XiGProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su
)
:
XiGModel(XiGProperties, thermo, turbulence, Su),
GIn_(XiGModelCoeffs_.lookup("GIn")),
lambdaIn_(XiGModelCoeffs_.lookup("lambdaIn")),
XiGModel_(XiGModel::New(XiGModelCoeffs_, thermo, turbulence, Su))
{}
// * * * * * * * * * * * * * * * * Destructors * * * * * * * * * * * * * * * //
Foam::XiGModels::instabilityG::~instabilityG()
{}
// * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
Foam::tmp<Foam::volScalarField> Foam::XiGModels::instabilityG::G() const
{
volScalarField turbXiG(XiGModel_->G());
return (GIn_*GIn_/(GIn_ + turbXiG) + turbXiG);
}
Foam::tmp<Foam::volScalarField> Foam::XiGModels::instabilityG::Db() const
{
const objectRegistry& db = Su_.db();
const volScalarField& Xi = db.lookupObject<volScalarField>("Xi");
const volScalarField& rho = db.lookupObject<volScalarField>("rho");
const volScalarField& mgb = db.lookupObject<volScalarField>("mgb");
return XiGModel_->Db()
+ rho*Su_*(Xi - 1.0)*mgb*(0.5*lambdaIn_)/(mgb + 1.0/lambdaIn_);
}
bool Foam::XiGModels::instabilityG::read(const dictionary& XiGProperties)
{
XiGModel::read(XiGProperties);
XiGModelCoeffs_.lookup("GIn") >> GIn_;
XiGModelCoeffs_.lookup("lambdaIn") >> lambdaIn_;
return true;
}
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Class
Foam::XiGModels::instabilityG
Description
Flame-surface instabilityG flame-wrinking generation rate coefficient model
used in \link XiModel.H \endlink.
See Technical Report SH/RE/01R for details on the PDR modelling.
SourceFiles
instabilityG.C
\*---------------------------------------------------------------------------*/
#ifndef instabilityG_H
#define instabilityG_H
#include "XiGModel.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace XiGModels
{
/*---------------------------------------------------------------------------*\
Class instabilityG Declaration
\*---------------------------------------------------------------------------*/
class instabilityG
:
public XiGModel
{
// Private data
//- Flame instabilityG wrinling generation rate coefficient
dimensionedScalar GIn_;
//- InstabilityG length-scale
dimensionedScalar lambdaIn_;
//- Xi generation rate model due to all other processes
autoPtr<XiGModel> XiGModel_;
// Private Member Functions
//- Disallow copy construct
instabilityG(const instabilityG&);
//- Disallow default bitwise assignment
void operator=(const instabilityG&);
public:
//- Runtime type information
TypeName("instabilityG");
// Constructors
//- Construct from components
instabilityG
(
const dictionary& XiGProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su
);
//- Destructor
virtual ~instabilityG();
// Member Functions
//- Return the flame-wrinking generation rate
virtual tmp<volScalarField> G() const;
//- Return the flame diffusivity
virtual tmp<volScalarField> Db() const;
//- Update properties from given dictionary
virtual bool read(const dictionary& XiGProperties);
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace XiGModels
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "XiModel.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
defineTypeNameAndDebug(XiModel, 0);
defineRunTimeSelectionTable(XiModel, dictionary);
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::XiModel::XiModel
(
const dictionary& XiProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su,
const volScalarField& rho,
const volScalarField& b,
const surfaceScalarField& phi
)
:
XiModelCoeffs_
(
XiProperties.subDict
(
word(XiProperties.lookup("XiModel")) + "Coeffs"
)
),
thermo_(thermo),
turbulence_(turbulence),
Su_(Su),
rho_(rho),
b_(b),
phi_(phi),
Xi_
(
IOobject
(
"Xi",
b.time().timeName(),
b.db(),
IOobject::MUST_READ,
IOobject::AUTO_WRITE
),
b.mesh()
)
{}
// * * * * * * * * * * * * * * * * Destructors * * * * * * * * * * * * * * * //
Foam::XiModel::~XiModel()
{}
// * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
bool Foam::XiModel::read(const dictionary& XiProperties)
{
XiModelCoeffs_ = XiProperties.subDict(type() + "Coeffs");
return true;
}
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Class
Foam::XiModel
Description
Base-class for all Xi models used by the b-Xi combustion model.
See Technical Report SH/RE/01R for details on the PDR modelling.
Xi is given through an algebraic expression (\link algebraic.H \endlink),
by solving a transport equation (\link transport.H \endlink) or a
fixed value (\link fixed.H \endlink).
See report TR/HGW/10 for details on the Weller two equations model.
In the algebraic and transport methods \f$\Xi_{eq}\f$ is calculated in
similar way. In the algebraic approach, \f$\Xi_{eq}\f$ is the value used in
the \f$ b \f$ transport equation.
\f$\Xi_{eq}\f$ is calculated as follows:
\f$\Xi_{eq} = 1 + (1 + 2\Xi_{coeff}(0.5 - \dwea{b}))(\Xi^* - 1)\f$
where:
\f$ \dwea{b} \f$ is the regress variable.
\f$ \Xi_{coeff} \f$ is a model constant.
\f$ \Xi^* \f$ is the total equilibrium wrinkling combining the effects
of the flame inestability and turbulence interaction and is given by
\f[
\Xi^* = \frac {R}{R - G_\eta - G_{in}}
\f]
where:
\f$ G_\eta \f$ is the generation rate of wrinkling due to turbulence
interaction.
\f$ G_{in} = \kappa \rho_{u}/\rho_{b} \f$ is the generation
rate due to the flame inestability.
By adding the removal rates of the two effects:
\f[
R = G_\eta \frac{\Xi_{\eta_{eq}}}{\Xi_{\eta_{eq}} - 1}
+ G_{in} \frac{\Xi_{{in}_{eq}}}{\Xi_{{in}_{eq}} - 1}
\f]
where:
\f$ R \f$ is the total removal.
\f$ G_\eta \f$ is a model constant.
\f$ \Xi_{\eta_{eq}} \f$ is the flame wrinkling due to turbulence.
\f$ \Xi_{{in}_{eq}} \f$ is the equilibrium level of the flame wrinkling
generated by inestability. It is a constant (default 2.5).
SourceFiles
XiModel.C
\*---------------------------------------------------------------------------*/
#ifndef XiModel_H
#define XiModel_H
#include "IOdictionary.H"
#include "psiuReactionThermo.H"
#include "RASModel.H"
#include "multivariateSurfaceInterpolationScheme.H"
#include "runTimeSelectionTables.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
/*---------------------------------------------------------------------------*\
Class XiModel Declaration
\*---------------------------------------------------------------------------*/
class XiModel
{
protected:
// Protected data
dictionary XiModelCoeffs_;
const psiuReactionThermo& thermo_;
const compressible::RASModel& turbulence_;
const volScalarField& Su_;
const volScalarField& rho_;
const volScalarField& b_;
const surfaceScalarField& phi_;
//- Flame wrinking field
volScalarField Xi_;
private:
// Private Member Functions
//- Disallow copy construct
XiModel(const XiModel&);
//- Disallow default bitwise assignment
void operator=(const XiModel&);
public:
//- Runtime type information
TypeName("XiModel");
// Declare run-time constructor selection table
declareRunTimeSelectionTable
(
autoPtr,
XiModel,
dictionary,
(
const dictionary& XiProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su,
const volScalarField& rho,
const volScalarField& b,
const surfaceScalarField& phi
),
(
XiProperties,
thermo,
turbulence,
Su,
rho,
b,
phi
)
);
// Selectors
//- Return a reference to the selected Xi model
static autoPtr<XiModel> New
(
const dictionary& XiProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su,
const volScalarField& rho,
const volScalarField& b,
const surfaceScalarField& phi
);
// Constructors
//- Construct from components
XiModel
(
const dictionary& XiProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su,
const volScalarField& rho,
const volScalarField& b,
const surfaceScalarField& phi
);
//- Destructor
virtual ~XiModel();
// Member Functions
//- Return the flame-wrinking Xi
virtual const volScalarField& Xi() const
{
return Xi_;
}
//- Return the flame diffusivity
virtual tmp<volScalarField> Db() const
{
return turbulence_.muEff();
}
//- Add Xi to the multivariateSurfaceInterpolationScheme table
// if required
virtual void addXi
(
multivariateSurfaceInterpolationScheme<scalar>::fieldTable&
)
{}
//- Correct the flame-wrinking Xi
virtual void correct() = 0;
//- Correct the flame-wrinking Xi using the given convection scheme
virtual void correct(const fv::convectionScheme<scalar>&)
{
correct();
}
//- Update properties from given dictionary
virtual bool read(const dictionary& XiProperties) = 0;
//- Write fields related to Xi model
virtual void writeFields() = 0;
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "XiModel.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Foam::autoPtr<Foam::XiModel> Foam::XiModel::New
(
const dictionary& propDict,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su,
const volScalarField& rho,
const volScalarField& b,
const surfaceScalarField& phi
)
{
const word modelType(propDict.lookup("XiModel"));
Info<< "Selecting flame-wrinkling model " << modelType << endl;
dictionaryConstructorTable::iterator cstrIter =
dictionaryConstructorTablePtr_->find(modelType);
if (cstrIter == dictionaryConstructorTablePtr_->end())
{
FatalErrorIn
(
"XiModel::New"
) << "Unknown XiModel type "
<< modelType << nl << nl
<< "Valid XiModels are : " << endl
<< dictionaryConstructorTablePtr_->sortedToc()
<< exit(FatalError);
}
return autoPtr<XiModel>
(cstrIter()(propDict, thermo, turbulence, Su, rho, b, phi));
}
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "algebraic.H"
#include "addToRunTimeSelectionTable.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
namespace XiModels
{
defineTypeNameAndDebug(algebraic, 0);
addToRunTimeSelectionTable(XiModel, algebraic, dictionary);
}
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::XiModels::algebraic::algebraic
(
const dictionary& XiProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su,
const volScalarField& rho,
const volScalarField& b,
const surfaceScalarField& phi
)
:
XiModel(XiProperties, thermo, turbulence, Su, rho, b, phi),
XiShapeCoef(readScalar(XiModelCoeffs_.lookup("XiShapeCoef"))),
XiEqModel_(XiEqModel::New(XiProperties, thermo, turbulence, Su)),
XiGModel_(XiGModel::New(XiProperties, thermo, turbulence, Su))
{}
// * * * * * * * * * * * * * * * * Destructors * * * * * * * * * * * * * * * //
Foam::XiModels::algebraic::~algebraic()
{}
// * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
Foam::tmp<Foam::volScalarField> Foam::XiModels::algebraic::Db() const
{
return XiGModel_->Db();
}
void Foam::XiModels::algebraic::correct()
{
volScalarField XiEqEta(XiEqModel_->XiEq());
volScalarField GEta(XiGModel_->G());
volScalarField R(GEta*XiEqEta/(XiEqEta - 0.999));
volScalarField XiEqStar(R/(R - GEta));
Xi_ == 1.0 + (1.0 + (2*XiShapeCoef)*(0.5 - b_))*(XiEqStar - 1.0);
}
bool Foam::XiModels::algebraic::read(const dictionary& XiProperties)
{
XiModel::read(XiProperties);
XiModelCoeffs_.lookup("XiShapeCoef") >> XiShapeCoef;
return true;
}
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Class
Foam::XiModels::algebraic
Description
Simple algebraic model for Xi based on Gulders correlation
with a linear correction function to give a plausible profile for Xi.
See report TR/HGW/10 for details on the Weller two equations model.
See \link XiModel.H \endlink for more details on flame wrinkling modelling.
SourceFiles
algebraic.C
\*---------------------------------------------------------------------------*/
#ifndef algebraic_H
#define algebraic_H
#include "XiModel.H"
#include "XiEqModel.H"
#include "XiGModel.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace XiModels
{
/*---------------------------------------------------------------------------*\
Class algebraic Declaration
\*---------------------------------------------------------------------------*/
class algebraic
:
public XiModel
{
// Private data
scalar XiShapeCoef;
autoPtr<XiEqModel> XiEqModel_;
autoPtr<XiGModel> XiGModel_;
// Private Member Functions
//- Disallow copy construct
algebraic(const algebraic&);
//- Disallow default bitwise assignment
void operator=(const algebraic&);
public:
//- Runtime type information
TypeName("algebraic");
// Constructors
//- Construct from components
algebraic
(
const dictionary& XiProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su,
const volScalarField& rho,
const volScalarField& b,
const surfaceScalarField& phi
);
//- Destructor
virtual ~algebraic();
// Member Functions
//- Return the flame diffusivity
virtual tmp<volScalarField> Db() const;
//- Correct the flame-wrinking Xi
virtual void correct();
//- Update properties from given dictionary
virtual bool read(const dictionary& XiProperties);
//- Write fields of the XiEq model
virtual void writeFields()
{
XiEqModel_().writeFields();
}
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace XiModels
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "fixed.H"
#include "addToRunTimeSelectionTable.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
namespace XiModels
{
defineTypeNameAndDebug(fixed, 0);
addToRunTimeSelectionTable(XiModel, fixed, dictionary);
}
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::XiModels::fixed::fixed
(
const dictionary& XiProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su,
const volScalarField& rho,
const volScalarField& b,
const surfaceScalarField& phi
)
:
XiModel(XiProperties, thermo, turbulence, Su, rho, b, phi)
{}
// * * * * * * * * * * * * * * * * Destructors * * * * * * * * * * * * * * * //
Foam::XiModels::fixed::~fixed()
{}
// * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
bool Foam::XiModels::fixed::read(const dictionary& XiProperties)
{
return XiModel::read(XiProperties);
}
// ************************************************************************* //

115
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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Class
Foam::XiModels::fixed
Description
Fixed value model for Xi. See \link XiModel.H \endlink for more details
on flame wrinkling modelling.
SourceFiles
fixed.C
\*---------------------------------------------------------------------------*/
#ifndef fixed_H
#define fixed_H
#include "XiModel.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace XiModels
{
/*---------------------------------------------------------------------------*\
Class fixed Declaration
\*---------------------------------------------------------------------------*/
class fixed
:
public XiModel
{
// Private Member Functions
//- Disallow copy construct
fixed(const fixed&);
//- Disallow default bitwise assignment
void operator=(const fixed&);
public:
//- Runtime type information
TypeName("fixed");
// Constructors
//- Construct from components
fixed
(
const dictionary& XiProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su,
const volScalarField& rho,
const volScalarField& b,
const surfaceScalarField& phi
);
//- Destructor
virtual ~fixed();
// Member Functions
//- Correct the flame-wrinking Xi
virtual void correct()
{}
//- Update properties from given dictionary
virtual bool read(const dictionary& XiProperties);
//- Write fields of the XiEq model
virtual void writeFields()
{}
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace XiModels
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "transport.H"
#include "addToRunTimeSelectionTable.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
namespace XiModels
{
defineTypeNameAndDebug(transport, 0);
addToRunTimeSelectionTable(XiModel, transport, dictionary);
}
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::XiModels::transport::transport
(
const dictionary& XiProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su,
const volScalarField& rho,
const volScalarField& b,
const surfaceScalarField& phi
)
:
XiModel(XiProperties, thermo, turbulence, Su, rho, b, phi),
XiShapeCoef(readScalar(XiModelCoeffs_.lookup("XiShapeCoef"))),
XiEqModel_(XiEqModel::New(XiProperties, thermo, turbulence, Su)),
XiGModel_(XiGModel::New(XiProperties, thermo, turbulence, Su))
{}
// * * * * * * * * * * * * * * * * Destructors * * * * * * * * * * * * * * * //
Foam::XiModels::transport::~transport()
{}
// * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
Foam::tmp<Foam::volScalarField> Foam::XiModels::transport::Db() const
{
return XiGModel_->Db();
}
void Foam::XiModels::transport::correct
(
const fv::convectionScheme<scalar>& mvConvection
)
{
volScalarField XiEqEta(XiEqModel_->XiEq());
volScalarField GEta(XiGModel_->G());
volScalarField R(GEta*XiEqEta/(XiEqEta - 0.999));
volScalarField XiEqStar(R/(R - GEta));
volScalarField XiEq
(
1.0 + (1.0 + (2*XiShapeCoef)*(0.5 - b_))*(XiEqStar - 1.0)
);
volScalarField G(R*(XiEq - 1.0)/XiEq);
const objectRegistry& db = b_.db();
const volScalarField& betav = db.lookupObject<volScalarField>("betav");
const volScalarField& mgb = db.lookupObject<volScalarField>("mgb");
const surfaceScalarField& phiSt =
db.lookupObject<surfaceScalarField>("phiSt");
const volScalarField& Db = db.lookupObject<volScalarField>("Db");
const surfaceScalarField& nf = db.lookupObject<surfaceScalarField>("nf");
surfaceScalarField phiXi
(
"phiXi",
phiSt
+ (
- fvc::interpolate(fvc::laplacian(Db, b_)/mgb)*nf
+ fvc::interpolate(rho_)*fvc::interpolate(Su_*(1.0/Xi_ - Xi_))*nf
)
);
solve
(
betav*fvm::ddt(rho_, Xi_)
+ mvConvection.fvmDiv(phi_, Xi_)
+ fvm::div(phiXi, Xi_)
- fvm::Sp(fvc::div(phiXi), Xi_)
==
betav*rho_*R
- fvm::Sp(betav*rho_*(R - G), Xi_)
);
// Correct boundedness of Xi
// ~~~~~~~~~~~~~~~~~~~~~~~~~
Xi_.max(1.0);
Xi_ = min(Xi_, 2.0*XiEq);
}
bool Foam::XiModels::transport::read(const dictionary& XiProperties)
{
XiModel::read(XiProperties);
XiModelCoeffs_.lookup("XiShapeCoef") >> XiShapeCoef;
return true;
}
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Class
Foam::XiModels::transport
Description
Simple transport model for Xi based on Gulders correlation
with a linear correction function to give a plausible profile for Xi.
See report TR/HGW/10 for details on the Weller two equations model.
See \link XiModel.H \endlink for more details on flame wrinkling modelling.
SourceFiles
transport.C
\*---------------------------------------------------------------------------*/
#ifndef transport_H
#define transport_H
#include "XiModel.H"
#include "XiEqModel.H"
#include "XiGModel.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace XiModels
{
/*---------------------------------------------------------------------------*\
Class transport Declaration
\*---------------------------------------------------------------------------*/
class transport
:
public XiModel
{
// Private data
scalar XiShapeCoef;
autoPtr<XiEqModel> XiEqModel_;
autoPtr<XiGModel> XiGModel_;
// Private Member Functions
//- Disallow copy construct
transport(const transport&);
//- Disallow default bitwise assignment
void operator=(const transport&);
public:
//- Runtime type information
TypeName("transport");
// Constructors
//- Construct from components
transport
(
const dictionary& XiProperties,
const psiuReactionThermo& thermo,
const compressible::RASModel& turbulence,
const volScalarField& Su,
const volScalarField& rho,
const volScalarField& b,
const surfaceScalarField& phi
);
//- Destructor
virtual ~transport();
// Member Functions
//- Return the flame diffusivity
virtual tmp<volScalarField> Db() const;
//- Add Xi to the multivariateSurfaceInterpolationScheme table
virtual void addXi
(
multivariateSurfaceInterpolationScheme<scalar>::fieldTable& fields
)
{
fields.add(Xi_);
}
//- Correct the flame-wrinking Xi
virtual void correct()
{
notImplemented("transport::correct()");
}
//- Correct the flame-wrinking Xi using the given convection scheme
virtual void correct(const fv::convectionScheme<scalar>& mvConvection);
//- Update properties from given dictionary
virtual bool read(const dictionary& XiProperties);
//- Write fields of the XiEq model
virtual void writeFields()
{
XiEqModel_().writeFields();
}
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace XiModels
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //

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tmp<fv::convectionScheme<scalar> > mvConvection
(
fv::convectionScheme<scalar>::New
(
mesh,
fields,
phi,
mesh.divScheme("div(phi,ft_b_ha_hau)")
)
);
volScalarField Db("Db", turbulence->muEff());
if (ign.ignited())
{
// Calculate the unstrained laminar flame speed
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Su = unstrainedLaminarFlameSpeed()();
const volScalarField& Xi = flameWrinkling->Xi();
// progress variable
// ~~~~~~~~~~~~~~~~~
volScalarField c("c", 1.0 - b);
// Unburnt gas density
// ~~~~~~~~~~~~~~~~~~~
volScalarField rhou(thermo.rhou());
// Calculate flame normal etc.
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
//volVectorField n(fvc::grad(b));
volVectorField n(fvc::reconstruct(fvc::snGrad(b)*mesh.magSf()));
volScalarField mgb("mgb", mag(n));
dimensionedScalar dMgb("dMgb", mgb.dimensions(), SMALL);
{
volScalarField bc(b*c);
dMgb += 1.0e-3*
(bc*mgb)().weightedAverage(mesh.V())
/(bc.weightedAverage(mesh.V()) + SMALL);
}
mgb += dMgb;
surfaceVectorField Sfhat(mesh.Sf()/mesh.magSf());
surfaceVectorField nfVec(fvc::interpolate(n));
nfVec += Sfhat*(fvc::snGrad(b) - (Sfhat & nfVec));
nfVec /= (mag(nfVec) + dMgb);
surfaceScalarField nf("nf", mesh.Sf() & nfVec);
n /= mgb;
#include "StCorr.H"
// Calculate turbulent flame speed flux
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
surfaceScalarField phiSt("phiSt", fvc::interpolate(rhou*StCorr*St)*nf);
#include "StCourantNo.H"
Db = flameWrinkling->Db();
// Create b equation
// ~~~~~~~~~~~~~~~~~
fvScalarMatrix bEqn
(
betav*fvm::ddt(rho, b)
+ mvConvection->fvmDiv(phi, b)
+ fvm::div(phiSt, b)
- fvm::Sp(fvc::div(phiSt), b)
- fvm::laplacian(Db, b)
);
// Add ignition cell contribution to b-equation
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#include "ignite.H"
// Solve for b
// ~~~~~~~~~~~
bEqn.solve();
Info<< "min(b) = " << min(b).value() << endl;
if (composition.contains("ft"))
{
volScalarField& ft = composition.Y("ft");
Info<< "Combustion progress = "
<< 100*(1.0 - b)().weightedAverage(mesh.V()*ft).value() << "%"
<< endl;
}
else
{
Info<< "Combustion progress = "
<< 100*(1.0 - b)().weightedAverage(mesh.V()).value() << "%"
<< endl;
}
// Correct the flame-wrinkling
flameWrinkling->correct(mvConvection);
St = Xi*Su;
}

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Info<< "Reading thermophysical properties\n" << endl;
autoPtr<psiuReactionThermo> pThermo
(
psiuReactionThermo::New(mesh)
);
psiuReactionThermo& thermo = pThermo();
thermo.validate(args.executable(), "ha", "ea");
basicMultiComponentMixture& composition = thermo.composition();
volScalarField rho
(
IOobject
(
"rho",
runTime.timeName(),
mesh,
IOobject::NO_READ,
IOobject::AUTO_WRITE
),
thermo.rho()
);
volScalarField& p = thermo.p();
const volScalarField& psi = thermo.psi();
volScalarField& b = composition.Y("b");
Info<< "min(b) = " << min(b).value() << endl;
Info<< "\nReading field U\n" << endl;
volVectorField U
(
IOobject
(
"U",
runTime.timeName(),
mesh,
IOobject::MUST_READ,
IOobject::AUTO_WRITE
),
mesh
);
#include "compressibleCreatePhi.H"
Info<< "Creating turbulence model\n" << endl;
autoPtr<compressible::RASModel> turbulence
(
compressible::RASModel::New
(
rho,
U,
phi,
thermo
)
);
Info<< "Creating field dpdt\n" << endl;
volScalarField dpdt
(
IOobject
(
"dpdt",
runTime.timeName(),
mesh
),
mesh,
dimensionedScalar("dpdt", p.dimensions()/dimTime, 0)
);
Info<< "Creating field kinetic energy K\n" << endl;
volScalarField K("K", 0.5*magSqr(U));
Info<< "Creating the unstrained laminar flame speed\n" << endl;
autoPtr<laminarFlameSpeed> unstrainedLaminarFlameSpeed
(
laminarFlameSpeed::New(thermo)
);
Info<< "Reading strained laminar flame speed field Su\n" << endl;
volScalarField Su
(
IOobject
(
"Su",
runTime.timeName(),
mesh,
IOobject::MUST_READ,
IOobject::AUTO_WRITE
),
mesh
);
Info<< "Reading field betav\n" << endl;
volScalarField betav
(
IOobject
(
"betav",
mesh.facesInstance(),
mesh,
IOobject::MUST_READ,
IOobject::NO_WRITE
),
mesh
);
Info<< "Reading field Lobs\n" << endl;
volScalarField Lobs
(
IOobject
(
"Lobs",
mesh.facesInstance(),
mesh,
IOobject::MUST_READ,
IOobject::NO_WRITE
),
mesh
);
Info<< "Reading field CT\n" << endl;
volSymmTensorField CT
(
IOobject
(
"CT",
mesh.facesInstance(),
mesh,
IOobject::MUST_READ,
IOobject::NO_WRITE
),
mesh
);
IOdictionary PDRProperties
(
IOobject
(
"PDRProperties",
runTime.constant(),
mesh,
IOobject::MUST_READ_IF_MODIFIED,
IOobject::NO_WRITE
)
);
//- Create the drag model
autoPtr<PDRDragModel> drag = PDRDragModel::New
(
PDRProperties,
turbulence,
rho,
U,
phi
);
//- Create the flame-wrinkling model
autoPtr<XiModel> flameWrinkling = XiModel::New
(
PDRProperties,
thermo,
turbulence,
Su,
rho,
b,
phi
);
Info<< "Calculating turbulent flame speed field St\n" << endl;
volScalarField St
(
IOobject
(
"St",
runTime.timeName(),
mesh,
IOobject::NO_READ,
IOobject::AUTO_WRITE
),
flameWrinkling->Xi()*Su
);
multivariateSurfaceInterpolationScheme<scalar>::fieldTable fields;
if (composition.contains("ft"))
{
fields.add(composition.Y("ft"));
}
fields.add(b);
fields.add(thermo.he());
fields.add(thermo.heu());
flameWrinkling->addXi(fields);

11
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if (composition.contains("ft"))
{
volScalarField& ft = composition.Y("ft");
solve
(
betav*fvm::ddt(rho, ft)
+ mvConvection->fvmDiv(phi, ft)
- fvm::laplacian(Db, ft)
);
}

451
applications/solvers/combustion/PDRFoam/laminarFlameSpeed/SCOPE/SCOPELaminarFlameSpeed.C Normal file
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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "IFstream.H"
#include "SCOPELaminarFlameSpeed.H"
#include "addToRunTimeSelectionTable.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
namespace laminarFlameSpeedModels
{
defineTypeNameAndDebug(SCOPE, 0);
addToRunTimeSelectionTable
(
laminarFlameSpeed,
SCOPE,
dictionary
);
}
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::laminarFlameSpeedModels::SCOPE::polynomial::polynomial
(
const dictionary& polyDict
)
:
FixedList<scalar, 7>(polyDict.lookup("coefficients")),
ll(readScalar(polyDict.lookup("lowerLimit"))),
ul(readScalar(polyDict.lookup("upperLimit"))),
llv(polyPhi(ll, *this)),
ulv(polyPhi(ul, *this)),
lu(0)
{}
Foam::laminarFlameSpeedModels::SCOPE::SCOPE
(
const dictionary& dict,
const psiuReactionThermo& ct
)
:
laminarFlameSpeed(dict, ct),
coeffsDict_
(
dictionary
(
IFstream
(
fileName
(
dict.lookup("fuelFile")
)
)()
).subDict(typeName + "Coeffs")
),
LFL_(readScalar(coeffsDict_.lookup("lowerFlamabilityLimit"))),
UFL_(readScalar(coeffsDict_.lookup("upperFlamabilityLimit"))),
SuPolyL_(coeffsDict_.subDict("lowerSuPolynomial")),
SuPolyU_(coeffsDict_.subDict("upperSuPolynomial")),
Texp_(readScalar(coeffsDict_.lookup("Texp"))),
pexp_(readScalar(coeffsDict_.lookup("pexp"))),
MaPolyL_(coeffsDict_.subDict("lowerMaPolynomial")),
MaPolyU_(coeffsDict_.subDict("upperMaPolynomial"))
{
SuPolyL_.ll = max(SuPolyL_.ll, LFL_) + SMALL;
SuPolyU_.ul = min(SuPolyU_.ul, UFL_) - SMALL;
SuPolyL_.lu = 0.5*(SuPolyL_.ul + SuPolyU_.ll);
SuPolyU_.lu = SuPolyL_.lu - SMALL;
MaPolyL_.lu = 0.5*(MaPolyL_.ul + MaPolyU_.ll);
MaPolyU_.lu = MaPolyL_.lu - SMALL;
if (debug)
{
Info<< "phi Su (T = Tref, p = pref)" << endl;
label n = 200;
for (int i=0; i<n; i++)
{
scalar phi = (2.0*i)/n;
Info<< phi << token::TAB << SuRef(phi) << endl;
}
}
}
// * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
Foam::laminarFlameSpeedModels::SCOPE::~SCOPE()
{}
// * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
inline Foam::scalar Foam::laminarFlameSpeedModels::SCOPE::polyPhi
(
scalar phi,
const polynomial& a
)
{
scalar x = phi - 1.0;
return
a[0]
*(
scalar(1)
+ x*(a[1] + x*(a[2] + x*(a[3] + x*(a[4] + x*(a[5] + x*a[6])))))
);
}
inline Foam::scalar Foam::laminarFlameSpeedModels::SCOPE::SuRef
(
scalar phi
) const
{
if (phi < LFL_ || phi > UFL_)
{
// Return 0 beyond the flamibility limits
return scalar(0);
}
else if (phi < SuPolyL_.ll)
{
// Use linear interpolation between the low end of the
// lower polynomial and the lower flamibility limit
return SuPolyL_.llv*(phi - LFL_)/(SuPolyL_.ll - LFL_);
}
else if (phi > SuPolyU_.ul)
{
// Use linear interpolation between the upper end of the
// upper polynomial and the upper flamibility limit
return SuPolyU_.ulv*(UFL_ - phi)/(UFL_ - SuPolyU_.ul);
}
else if (phi < SuPolyL_.lu)
{
// Evaluate the lower polynomial
return polyPhi(phi, SuPolyL_);
}
else if (phi > SuPolyU_.lu)
{
// Evaluate the upper polynomial
return polyPhi(phi, SuPolyU_);
}
else
{
FatalErrorIn("laminarFlameSpeedModels::SCOPE::SuRef(scalar phi)")
<< "phi = " << phi
<< " cannot be handled by SCOPE function with the "
"given coefficients"
<< exit(FatalError);
return scalar(0);
}
}
inline Foam::scalar Foam::laminarFlameSpeedModels::SCOPE::Ma
(
scalar phi
) const
{
if (phi < MaPolyL_.ll)
{
// Beyond the lower limit assume Ma is constant
return MaPolyL_.llv;
}
else if (phi > MaPolyU_.ul)
{
// Beyond the upper limit assume Ma is constant
return MaPolyU_.ulv;
}
else if (phi < SuPolyL_.lu)
{
// Evaluate the lower polynomial
return polyPhi(phi, MaPolyL_);
}
else if (phi > SuPolyU_.lu)
{
// Evaluate the upper polynomial
return polyPhi(phi, MaPolyU_);
}
else
{
FatalErrorIn("laminarFlameSpeedModels::SCOPE::Ma(scalar phi)")
<< "phi = " << phi
<< " cannot be handled by SCOPE function with the "
"given coefficients"
<< exit(FatalError);
return scalar(0);
}
}
inline Foam::scalar Foam::laminarFlameSpeedModels::SCOPE::Su0pTphi
(
scalar p,
scalar Tu,
scalar phi
) const
{
static const scalar Tref = 300.0;
static const scalar pRef = 1.013e5;
return SuRef(phi)*pow((Tu/Tref), Texp_)*pow((p/pRef), pexp_);
}
Foam::tmp<Foam::volScalarField> Foam::laminarFlameSpeedModels::SCOPE::Su0pTphi
(
const volScalarField& p,
const volScalarField& Tu,
scalar phi
) const
{
tmp<volScalarField> tSu0
(
new volScalarField
(
IOobject
(
"Su0",
p.time().timeName(),
p.db(),
IOobject::NO_READ,
IOobject::NO_WRITE
),
p.mesh(),
dimensionedScalar("Su0", dimVelocity, 0.0)
)
);
volScalarField& Su0 = tSu0();
forAll(Su0, celli)
{
Su0[celli] = Su0pTphi(p[celli], Tu[celli], phi);
}
forAll(Su0.boundaryField(), patchi)
{
scalarField& Su0p = Su0.boundaryField()[patchi];
const scalarField& pp = p.boundaryField()[patchi];
const scalarField& Tup = Tu.boundaryField()[patchi];
forAll(Su0p, facei)
{
Su0p[facei] = Su0pTphi(pp[facei], Tup[facei], phi);
}
}
return tSu0;
}
Foam::tmp<Foam::volScalarField> Foam::laminarFlameSpeedModels::SCOPE::Su0pTphi
(
const volScalarField& p,
const volScalarField& Tu,
const volScalarField& phi
) const
{
tmp<volScalarField> tSu0
(
new volScalarField
(
IOobject
(
"Su0",
p.time().timeName(),
p.db(),
IOobject::NO_READ,
IOobject::NO_WRITE
),
p.mesh(),
dimensionedScalar("Su0", dimVelocity, 0.0)
)
);
volScalarField& Su0 = tSu0();
forAll(Su0, celli)
{
Su0[celli] = Su0pTphi(p[celli], Tu[celli], phi[celli]);
}
forAll(Su0.boundaryField(), patchi)
{
scalarField& Su0p = Su0.boundaryField()[patchi];
const scalarField& pp = p.boundaryField()[patchi];
const scalarField& Tup = Tu.boundaryField()[patchi];
const scalarField& phip = phi.boundaryField()[patchi];
forAll(Su0p, facei)
{
Su0p[facei] =
Su0pTphi
(
pp[facei],
Tup[facei],
phip[facei]
);
}
}
return tSu0;
}
Foam::tmp<Foam::volScalarField> Foam::laminarFlameSpeedModels::SCOPE::Ma
(
const volScalarField& phi
) const
{
tmp<volScalarField> tMa
(
new volScalarField
(
IOobject
(
"Ma",
phi.time().timeName(),
phi.db(),
IOobject::NO_READ,
IOobject::NO_WRITE
),
phi.mesh(),
dimensionedScalar("Ma", dimless, 0.0)
)
);
volScalarField& ma = tMa();
forAll(ma, celli)
{
ma[celli] = Ma(phi[celli]);
}
forAll(ma.boundaryField(), patchi)
{
scalarField& map = ma.boundaryField()[patchi];
const scalarField& phip = phi.boundaryField()[patchi];
forAll(map, facei)
{
map[facei] = Ma(phip[facei]);
}
}
return tMa;
}
Foam::tmp<Foam::volScalarField>
Foam::laminarFlameSpeedModels::SCOPE::Ma() const
{
if (psiuReactionThermo_.composition().contains("ft"))
{
const volScalarField& ft = psiuReactionThermo_.composition().Y("ft");
return Ma
(
dimensionedScalar
(
psiuReactionThermo_.lookup("stoichiometricAirFuelMassRatio")
)*ft/(scalar(1) - ft)
);
}
else
{
const fvMesh& mesh = psiuReactionThermo_.p().mesh();
return tmp<volScalarField>
(
new volScalarField
(
IOobject
(
"Ma",
mesh.time().timeName(),
mesh,
IOobject::NO_READ,
IOobject::NO_WRITE
),
mesh,
dimensionedScalar("Ma", dimless, Ma(equivalenceRatio_))
)
);
}
}
Foam::tmp<Foam::volScalarField>
Foam::laminarFlameSpeedModels::SCOPE::operator()() const
{
if (psiuReactionThermo_.composition().contains("ft"))
{
const volScalarField& ft = psiuReactionThermo_.composition().Y("ft");
return Su0pTphi
(
psiuReactionThermo_.p(),
psiuReactionThermo_.Tu(),
dimensionedScalar
(
psiuReactionThermo_.lookup("stoichiometricAirFuelMassRatio")
)*ft/(scalar(1) - ft)
);
}
else
{
return Su0pTphi
(
psiuReactionThermo_.p(),
psiuReactionThermo_.Tu(),
equivalenceRatio_
);
}
}
// ************************************************************************* //

220
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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Class
Foam::laminarFlameSpeedModels::SCOPE
Description
Laminar flame speed obtained from the SCOPE correlation.
Seven parameters are specified in terms of polynomial functions of
stoichiometry. Two polynomials are fitted, covering different parts of the
flammable range. If the mixture is outside the fitted range, linear
interpolation is used between the extreme of the polynomio and the upper or
lower flammable limit with the Markstein number constant.
Variations of pressure and temperature from the reference values are taken
into account through \f$ pexp \f$ and \f$ texp \f$
The laminar burning velocity fitting polynomial is:
\f$ Su = a_{0}(1+a_{1}x+K+..a_{i}x^{i}..+a_{6}x^{6}) (p/p_{ref})^{pexp}
(T/T_{ref})^{texp} \f$
where:
\f$ a_{i} \f$ are the polinomial coefficients.
\f$ pexp \f$ and \f$ texp \f$ are the pressure and temperature factors
respectively.
\f$ x \f$ is the equivalence ratio.
\f$ T_{ref} \f$ and \f$ p_{ref} \f$ are the temperature and pressure
references for the laminar burning velocity.
SourceFiles
SCOPELaminarFlameSpeed.C
\*---------------------------------------------------------------------------*/
#ifndef SCOPE_H
#define SCOPE_H
#include "laminarFlameSpeed.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace laminarFlameSpeedModels
{
/*---------------------------------------------------------------------------*\
Class SCOPE Declaration
\*---------------------------------------------------------------------------*/
class SCOPE
:
public laminarFlameSpeed
{
// Private Data
class polynomial
:
public FixedList<scalar, 7>
{
public:
//- Lower limit
scalar ll;
//- Upper polynomial limit
scalar ul;
//- Value at lower limit
scalar llv;
//- Value at upper limit
scalar ulv;
//- Changeover point from lower to upper polynomial
scalar lu;
//- Construct from dictionary
polynomial(const dictionary& polyDict);
};
dictionary coeffsDict_;
//- Lower flamability limit
scalar LFL_;
//- Upper flamability limit
scalar UFL_;
//- Lower Su polynomial
polynomial SuPolyL_;
//- Upper Su polynomial
polynomial SuPolyU_;
//- Temperature correction exponent
scalar Texp_;
//- Pressure correction exponent
scalar pexp_;
//- Lower Ma polynomial
polynomial MaPolyL_;
//- Upper Ma polynomial
polynomial MaPolyU_;
// Private member functions
//- Polynomial evaluated from the given equivalence ratio
// and polynomial coefficients
static inline scalar polyPhi(scalar phi, const polynomial& a);
//- Laminar flame speed evaluated from the given equivalence ratio
// at the reference temperature and pressure
inline scalar SuRef(scalar phi) const;
//- Markstein evaluated from the given equivalence ratio
inline scalar Ma(scalar phi) const;
//- Laminar flame speed evaluated from the given equivalence ratio
// corrected for temperature and pressure dependence
inline scalar Su0pTphi(scalar p, scalar Tu, scalar phi) const;
//- Laminar flame speed evaluated from the given uniform
// equivalence ratio corrected for temperature and pressure dependence
tmp<volScalarField> Su0pTphi
(
const volScalarField& p,
const volScalarField& Tu,
scalar phi
) const;
//- Laminar flame speed evaluated from the given equivalence ratio
// distribution corrected for temperature and pressure dependence
tmp<volScalarField> Su0pTphi
(
const volScalarField& p,
const volScalarField& Tu,
const volScalarField& phi
) const;
//- Return the Markstein number
// evaluated from the given equivalence ratio
tmp<volScalarField> Ma(const volScalarField& phi) const;
//- Construct as copy (not implemented)
SCOPE(const SCOPE&);
void operator=(const SCOPE&);
public:
//- Runtime type information
TypeName("SCOPE");
// Constructors
//- Construct from dictionary and psiuReactionThermo
SCOPE
(
const dictionary&,
const psiuReactionThermo&
);
//- Destructor
~SCOPE();
// Member functions
//- Return the Markstein number
tmp<volScalarField> Ma() const;
//- Return the laminar flame speed [m/s]
tmp<volScalarField> operator()() const;
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End laminarFlameSpeedModels
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //

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rho = thermo.rho();
volScalarField rAU(1.0/UEqn.A());
volVectorField HbyA("HbyA", U);
HbyA = invA & UEqn.H();
if (pimple.transonic())
{
surfaceScalarField phid
(
"phid",
fvc::interpolate(psi)
*(
(fvc::interpolate(rho*HbyA) & mesh.Sf())
+ fvc::interpolate(rho*rAU)*fvc::ddtCorr(rho, U, phi)
)/fvc::interpolate(rho)
);
while (pimple.correctNonOrthogonal())
{
fvScalarMatrix pEqn
(
betav*fvm::ddt(psi, p)
+ fvm::div(phid, p)
- fvm::laplacian(rho*invA, p)
);
pEqn.solve(mesh.solver(p.select(pimple.finalInnerIter())));
if (pimple.finalNonOrthogonalIter())
{
phi == pEqn.flux();
}
}
}
else
{
surfaceScalarField phiHbyA
(
"phiHbyA",
(
(fvc::interpolate(rho*HbyA) & mesh.Sf())
+ fvc::interpolate(rho*rAU)*fvc::ddtCorr(rho, U, phi)
)
);
while (pimple.correctNonOrthogonal())
{
fvScalarMatrix pEqn
(
betav*fvm::ddt(psi, p)
+ fvc::div(phiHbyA)
- fvm::laplacian(rho*invA, p)
);
pEqn.solve(mesh.solver(p.select(pimple.finalInnerIter())));
if (pimple.finalNonOrthogonalIter())
{
phi = phiHbyA + pEqn.flux();
}
}
}
#include "rhoEqn.H"
#include "continuityErrs.H"
U = HbyA - (invA & (betav*fvc::grad(p)));
U.correctBoundaryConditions();
K = 0.5*magSqr(U);
if (thermo.dpdt())
{
dpdt = fvc::ddt(p);
}

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applications/solvers/combustion/PDRFoam/readCombustionProperties.H Normal file
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Info<< "Reading combustion properties\n" << endl;
IOdictionary combustionProperties
(
IOobject
(
"combustionProperties",
runTime.constant(),
mesh,
IOobject::MUST_READ_IF_MODIFIED,
IOobject::NO_WRITE
)
);
ignition ign(combustionProperties, runTime, mesh);

36
applications/solvers/combustion/PDRFoam/rhoEqn.H Normal file
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@ -0,0 +1,36 @@
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Global
rhoEqn
Description
Solve the continuity for density.
\*---------------------------------------------------------------------------*/
{
solve(betav*fvm::ddt(rho) + fvc::div(phi));
}
// ************************************************************************* //

51
applications/solvers/combustion/PDRFoam/setDeltaT.H Normal file
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@ -0,0 +1,51 @@
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Global
setDeltaT
Description
Reset the timestep to maintain a constant maximum courant Number.
Reduction of time-step is imediate but increase is damped to avoid
unstable oscillations.
\*---------------------------------------------------------------------------*/
if (adjustTimeStep)
{
scalar maxDeltaTFact = maxCo/(CoNum + StCoNum + SMALL);
scalar deltaTFact = min(min(maxDeltaTFact, 1.0 + 0.1*maxDeltaTFact), 1.2);
runTime.setDeltaT
(
min
(
deltaTFact*runTime.deltaTValue(),
maxDeltaT
)
);
Info<< "deltaT = " << runTime.deltaTValue() << endl;
}
// ************************************************************************* //

31
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@ -0,0 +1,31 @@
{
volScalarField& hea = thermo.he();
fvScalarMatrix EaEqn
(
fvm::ddt(rho, hea) + mvConvection->fvmDiv(phi, hea)
+ fvc::ddt(rho, K) + fvc::div(phi, K)
+ (
hea.name() == "ea"
? fvc::div
(
fvc::absolute(phi/fvc::interpolate(rho), U),
p,
"div(phiv,p)"
)
: -dpdt
)
- fvm::laplacian(turbulence->alphaEff(), hea)
+ fvOptions(rho, hea)
);
EaEqn.relax();
fvOptions.constrain(EaEqn);
EaEqn.solve();
fvOptions.correct(hea);
thermo.correct();
}

36
applications/solvers/combustion/XiFoam/EauEqn.H Normal file
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if (ign.ignited())
{
volScalarField& heau = thermo.heu();
fvScalarMatrix heauEqn
(
fvm::ddt(rho, heau) + mvConvection->fvmDiv(phi, heau)
+ (fvc::ddt(rho, K) + fvc::div(phi, K))*rho/thermo.rhou()
+ (
heau.name() == "eau"
? fvc::div
(
fvc::absolute(phi/fvc::interpolate(rho), U),
p,
"div(phiv,p)"
)*rho/thermo.rhou()
: -dpdt*rho/thermo.rhou()
)
- fvm::laplacian(turbulence->alphaEff(), heau)
// These terms cannot be used in partially-premixed combustion due to
// the resultant inconsistency between ft and heau transport.
// A possible solution would be to solve for ftu as well as ft.
//- fvm::div(muEff*fvc::grad(b)/(b + 0.001), heau)
//+ fvm::Sp(fvc::div(muEff*fvc::grad(b)/(b + 0.001)), heau)
==
fvOptions(rho, heau)
);
fvOptions.constrain(heauEqn);
heauEqn.solve();
fvOptions.correct(heau);
}

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XiFoam.C
EXE = $(FOAM_APPBIN)/XiFoam

25
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EXE_INC = \
-I$(LIB_SRC)/finiteVolume/lnInclude \
-I$(LIB_SRC)/fvOptions/lnInclude \
-I$(LIB_SRC)/sampling/lnInclude \
-I$(LIB_SRC)/meshTools/lnInclude\
-I$(LIB_SRC)/engine/lnInclude \
-I$(LIB_SRC)/thermophysicalModels/specie/lnInclude \
-I$(LIB_SRC)/thermophysicalModels/basic/lnInclude \
-I$(LIB_SRC)/thermophysicalModels/reactionThermo/lnInclude \
-I$(LIB_SRC)/turbulenceModels/compressible/turbulenceModel \
-I$(LIB_SRC)/thermophysicalModels/laminarFlameSpeed/lnInclude
EXE_LIBS = \
-lfiniteVolume \
-lfvOptions \
-lsampling \
-lmeshTools \
-lengine \
-lcompressibleTurbulenceModel \
-lcompressibleRASModels \
-lcompressibleLESModels \
-lfluidThermophysicalModels \
-lreactionThermophysicalModels \
-lspecie \
-llaminarFlameSpeedModels

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fvVectorMatrix UEqn
(
fvm::ddt(rho, U)
+ fvm::div(phi, U)
+ turbulence->divDevRhoReff(U)
==
rho*g
+ fvOptions(rho, U)
);
UEqn.relax();
fvOptions.constrain(UEqn);
if (pimple.momentumPredictor())
{
solve(UEqn == -fvc::grad(p));
fvOptions.correct(U);
K = 0.5*magSqr(U);
}

137
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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2013 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Application
XiFoam
Description
Solver for compressible premixed/partially-premixed combustion with
turbulence modelling.
Combusting RANS code using the b-Xi two-equation model.
Xi may be obtained by either the solution of the Xi transport
equation or from an algebraic exression. Both approaches are
based on Gulder's flame speed correlation which has been shown
to be appropriate by comparison with the results from the
spectral model.
Strain effects are encorporated directly into the Xi equation
but not in the algebraic approximation. Further work need to be
done on this issue, particularly regarding the enhanced removal rate
caused by flame compression. Analysis using results of the spectral
model will be required.
For cases involving very lean Propane flames or other flames which are
very strain-sensitive, a transport equation for the laminar flame
speed is present. This equation is derived using heuristic arguments
involving the strain time scale and the strain-rate at extinction.
the transport velocity is the same as that for the Xi equation.
\*---------------------------------------------------------------------------*/
#include "fvCFD.H"
#include "psiuReactionThermo.H"
#include "turbulenceModel.H"
#include "laminarFlameSpeed.H"
#include "ignition.H"
#include "Switch.H"
#include "pimpleControl.H"
#include "fvIOoptionList.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
int main(int argc, char *argv[])
{
#include "setRootCase.H"
#include "createTime.H"
#include "createMesh.H"
#include "readCombustionProperties.H"
#include "readGravitationalAcceleration.H"
#include "createFields.H"
#include "createFvOptions.H"
#include "initContinuityErrs.H"
#include "readTimeControls.H"
#include "compressibleCourantNo.H"
#include "setInitialDeltaT.H"
pimpleControl pimple(mesh);
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Info<< "\nStarting time loop\n" << endl;
while (runTime.run())
{
#include "readTimeControls.H"
#include "compressibleCourantNo.H"
#include "setDeltaT.H"
runTime++;
Info<< "Time = " << runTime.timeName() << nl << endl;
#include "rhoEqn.H"
// --- Pressure-velocity PIMPLE corrector loop
while (pimple.loop())
{
#include "UEqn.H"
#include "ftEqn.H"
#include "bEqn.H"
#include "EauEqn.H"
#include "EaEqn.H"
if (!ign.ignited())
{
thermo.heu() == thermo.he();
}
// --- Pressure corrector loop
while (pimple.correct())
{
#include "pEqn.H"
}
if (pimple.turbCorr())
{
turbulence->correct();
}
}
rho = thermo.rho();
runTime.write();
Info<< "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
<< " ClockTime = " << runTime.elapsedClockTime() << " s"
<< nl << endl;
}
Info<< "End\n" << endl;
return 0;
}
// ************************************************************************* //

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if (ign.ignited())
{
// progress variable
// ~~~~~~~~~~~~~~~~~
volScalarField c(scalar(1) - b);
// Unburnt gas density
// ~~~~~~~~~~~~~~~~~~~
volScalarField rhou(thermo.rhou());
// Calculate flame normal etc.
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
volVectorField n(fvc::grad(b));
volScalarField mgb(mag(n));
dimensionedScalar dMgb = 1.0e-3*
(b*c*mgb)().weightedAverage(mesh.V())
/((b*c)().weightedAverage(mesh.V()) + SMALL)
+ dimensionedScalar("ddMgb", mgb.dimensions(), SMALL);
mgb += dMgb;
surfaceVectorField SfHat(mesh.Sf()/mesh.magSf());
surfaceVectorField nfVec(fvc::interpolate(n));
nfVec += SfHat*(fvc::snGrad(b) - (SfHat & nfVec));
nfVec /= (mag(nfVec) + dMgb);
surfaceScalarField nf((mesh.Sf() & nfVec));
n /= mgb;
#include "StCorr.H"
// Calculate turbulent flame speed flux
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
surfaceScalarField phiSt("phiSt", fvc::interpolate(rhou*StCorr*Su*Xi)*nf);
scalar StCoNum = max
(
mesh.surfaceInterpolation::deltaCoeffs()
*mag(phiSt)/(fvc::interpolate(rho)*mesh.magSf())
).value()*runTime.deltaTValue();
Info<< "Max St-Courant Number = " << StCoNum << endl;
// Create b equation
// ~~~~~~~~~~~~~~~~~
fvScalarMatrix bEqn
(
fvm::ddt(rho, b)
+ mvConvection->fvmDiv(phi, b)
+ fvm::div(phiSt, b)
- fvm::Sp(fvc::div(phiSt), b)
- fvm::laplacian(turbulence->alphaEff(), b)
==
fvOptions(rho, b)
);
// Add ignition cell contribution to b-equation
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#include "ignite.H"
// Solve for b
// ~~~~~~~~~~~
bEqn.relax();
fvOptions.constrain(bEqn);
bEqn.solve();
fvOptions.correct(b);
Info<< "min(b) = " << min(b).value() << endl;
// Calculate coefficients for Gulder's flame speed correlation
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
volScalarField up(uPrimeCoef*sqrt((2.0/3.0)*turbulence->k()));
//volScalarField up(sqrt(mag(diag(n * n) & diag(turbulence->r()))));
volScalarField epsilon(pow(uPrimeCoef, 3)*turbulence->epsilon());
volScalarField tauEta(sqrt(thermo.muu()/(rhou*epsilon)));
volScalarField Reta
(
up
/ (
sqrt(epsilon*tauEta)
+ dimensionedScalar("1e-8", up.dimensions(), 1e-8)
)
);
//volScalarField l = 0.337*k*sqrt(k)/epsilon;
//Reta *= max((l - dimensionedScalar("dl", dimLength, 1.5e-3))/l, 0.0);
// Calculate Xi flux
// ~~~~~~~~~~~~~~~~~
surfaceScalarField phiXi
(
phiSt
- fvc::interpolate(fvc::laplacian(turbulence->alphaEff(), b)/mgb)*nf
+ fvc::interpolate(rho)*fvc::interpolate(Su*(1.0/Xi - Xi))*nf
);
// Calculate mean and turbulent strain rates
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
volVectorField Ut(U + Su*Xi*n);
volScalarField sigmat((n & n)*fvc::div(Ut) - (n & fvc::grad(Ut) & n));
volScalarField sigmas
(
((n & n)*fvc::div(U) - (n & fvc::grad(U) & n))/Xi
+ (
(n & n)*fvc::div(Su*n)
- (n & fvc::grad(Su*n) & n)
)*(Xi + scalar(1))/(2*Xi)
);
// Calculate the unstrained laminar flame speed
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
volScalarField Su0(unstrainedLaminarFlameSpeed()());
// Calculate the laminar flame speed in equilibrium with the applied strain
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
volScalarField SuInf(Su0*max(scalar(1) - sigmas/sigmaExt, scalar(0.01)));
if (SuModel == "unstrained")
{
Su == Su0;
}
else if (SuModel == "equilibrium")
{
Su == SuInf;
}
else if (SuModel == "transport")
{
// Solve for the strained laminar flame speed
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
volScalarField Rc
(
(sigmas*SuInf*(Su0 - SuInf) + sqr(SuMin)*sigmaExt)
/(sqr(Su0 - SuInf) + sqr(SuMin))
);
fvScalarMatrix SuEqn
(
fvm::ddt(rho, Su)
+ fvm::div(phi + phiXi, Su, "div(phiXi,Su)")
- fvm::Sp(fvc::div(phiXi), Su)
==
- fvm::SuSp(-rho*Rc*Su0/Su, Su)
- fvm::SuSp(rho*(sigmas + Rc), Su)
+ fvOptions(rho, Su)
);
SuEqn.relax();
fvOptions.constrain(SuEqn);
SuEqn.solve();
fvOptions.correct(Su);
// Limit the maximum Su
// ~~~~~~~~~~~~~~~~~~~~
Su.min(SuMax);
Su.max(SuMin);
}
else
{
FatalError
<< args.executable() << " : Unknown Su model " << SuModel
<< abort(FatalError);
}
// Calculate Xi according to the selected flame wrinkling model
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
if (XiModel == "fixed")
{
// Do nothing, Xi is fixed!
}
else if (XiModel == "algebraic")
{
// Simple algebraic model for Xi based on Gulders correlation
// with a linear correction function to give a plausible profile for Xi
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Xi == scalar(1) +
(scalar(1) + (2*XiShapeCoef)*(scalar(0.5) - b))
*XiCoef*sqrt(up/(Su + SuMin))*Reta;
}
else if (XiModel == "transport")
{
// Calculate Xi transport coefficients based on Gulders correlation
// and DNS data for the rate of generation
// with a linear correction function to give a plausible profile for Xi
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
volScalarField XiEqStar
(
scalar(1.001) + XiCoef*sqrt(up/(Su + SuMin))*Reta
);
volScalarField XiEq
(
scalar(1.001)
+ (
scalar(1)
+ (2*XiShapeCoef)
*(scalar(0.5) - min(max(b, scalar(0)), scalar(1)))
)*(XiEqStar - scalar(1.001))
);
volScalarField Gstar(0.28/tauEta);
volScalarField R(Gstar*XiEqStar/(XiEqStar - scalar(1)));
volScalarField G(R*(XiEq - scalar(1.001))/XiEq);
//R *= (Gstar + 2*mag(dev(symm(fvc::grad(U)))))/Gstar;
// Solve for the flame wrinkling
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fvScalarMatrix XiEqn
(
fvm::ddt(rho, Xi)
+ fvm::div(phi + phiXi, Xi, "div(phiXi,Xi)")
- fvm::Sp(fvc::div(phiXi), Xi)
==
rho*R
- fvm::Sp(rho*(R - G), Xi)
- fvm::Sp
(
rho*max
(
sigmat - sigmas,
dimensionedScalar("0", sigmat.dimensions(), 0)
),
Xi
)
+ fvOptions(rho, Xi)
);
XiEqn.relax();
fvOptions.constrain(XiEqn);
XiEqn.solve();
fvOptions.correct(Xi);
// Correct boundedness of Xi
// ~~~~~~~~~~~~~~~~~~~~~~~~~
Xi.max(1.0);
Info<< "max(Xi) = " << max(Xi).value() << endl;
Info<< "max(XiEq) = " << max(XiEq).value() << endl;
}
else
{
FatalError
<< args.executable() << " : Unknown Xi model " << XiModel
<< abort(FatalError);
}
Info<< "Combustion progress = "
<< 100*(scalar(1) - b)().weightedAverage(mesh.V()).value() << "%"
<< endl;
St = Xi*Su;
}

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Info<< "Reading thermophysical properties\n" << endl;
autoPtr<psiuReactionThermo> pThermo
(
psiuReactionThermo::New(mesh)
);
psiuReactionThermo& thermo = pThermo();
thermo.validate(args.executable(), "ha", "ea");
basicMultiComponentMixture& composition = thermo.composition();
volScalarField rho
(
IOobject
(
"rho",
runTime.timeName(),
mesh,
IOobject::NO_READ,
IOobject::AUTO_WRITE
),
thermo.rho()
);
volScalarField& p = thermo.p();
const volScalarField& psi = thermo.psi();
volScalarField& b = composition.Y("b");
Info<< "min(b) = " << min(b).value() << endl;
Info<< "\nReading field U\n" << endl;
volVectorField U
(
IOobject
(
"U",
runTime.timeName(),
mesh,
IOobject::MUST_READ,
IOobject::AUTO_WRITE
),
mesh
);
#include "compressibleCreatePhi.H"
Info<< "Creating turbulence model\n" << endl;
autoPtr<compressible::turbulenceModel> turbulence
(
compressible::turbulenceModel::New
(
rho,
U,
phi,
thermo
)
);
Info<< "Creating field dpdt\n" << endl;
volScalarField dpdt
(
IOobject
(
"dpdt",
runTime.timeName(),
mesh
),
mesh,
dimensionedScalar("dpdt", p.dimensions()/dimTime, 0)
);
Info<< "Creating field kinetic energy K\n" << endl;
volScalarField K("K", 0.5*magSqr(U));
Info<< "Creating field Xi\n" << endl;
volScalarField Xi
(
IOobject
(
"Xi",
runTime.timeName(),
mesh,
IOobject::MUST_READ,
IOobject::AUTO_WRITE
),
mesh
);
Info<< "Creating the unstrained laminar flame speed\n" << endl;
autoPtr<laminarFlameSpeed> unstrainedLaminarFlameSpeed
(
laminarFlameSpeed::New(thermo)
);
Info<< "Reading strained laminar flame speed field Su\n" << endl;
volScalarField Su
(
IOobject
(
"Su",
runTime.timeName(),
mesh,
IOobject::MUST_READ,
IOobject::AUTO_WRITE
),
mesh
);
dimensionedScalar SuMin = 0.01*Su.average();
dimensionedScalar SuMax = 4*Su.average();
Info<< "Calculating turbulent flame speed field St\n" << endl;
volScalarField St
(
IOobject
(
"St",
runTime.timeName(),
mesh,
IOobject::NO_READ,
IOobject::AUTO_WRITE
),
Xi*Su
);
multivariateSurfaceInterpolationScheme<scalar>::fieldTable fields;
if (composition.contains("ft"))
{
fields.add(composition.Y("ft"));
}
fields.add(b);
fields.add(thermo.he());
fields.add(thermo.heu());

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tmp<fv::convectionScheme<scalar> > mvConvection
(
fv::convectionScheme<scalar>::New
(
mesh,
fields,
phi,
mesh.divScheme("div(phi,ft_b_ha_hau)")
)
);
if (composition.contains("ft"))
{
volScalarField& ft = composition.Y("ft");
fvScalarMatrix ftEqn
(
fvm::ddt(rho, ft)
+ mvConvection->fvmDiv(phi, ft)
- fvm::laplacian(turbulence->alphaEff(), ft)
==
fvOptions(rho, ft)
);
fvOptions.constrain(ftEqn);
ftEqn.solve();
fvOptions.correct(ft);
}

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rho = thermo.rho();
volScalarField rAU(1.0/UEqn.A());
surfaceScalarField rhorAUf("rhorAUf", fvc::interpolate(rho*rAU));
volVectorField HbyA("HbyA", U);
HbyA = rAU*UEqn.H();
if (pimple.transonic())
{
surfaceScalarField phid
(
"phid",
fvc::interpolate(psi)
*(
(fvc::interpolate(rho*HbyA) & mesh.Sf())
+ rhorAUf*fvc::ddtCorr(rho, U, phi)
)/fvc::interpolate(rho)
);
fvOptions.makeRelative(fvc::interpolate(psi), phid);
while (pimple.correctNonOrthogonal())
{
fvScalarMatrix pEqn
(
fvm::ddt(psi, p)
+ fvm::div(phid, p)
- fvm::laplacian(rhorAUf, p)
==
fvOptions(psi, p, rho.name())
);
fvOptions.constrain(pEqn);
pEqn.solve(mesh.solver(p.select(pimple.finalInnerIter())));
if (pimple.finalNonOrthogonalIter())
{
phi == pEqn.flux();
}
}
}
else
{
surfaceScalarField phiHbyA
(
"phiHbyA",
(
(fvc::interpolate(rho*HbyA) & mesh.Sf())
+ rhorAUf*fvc::ddtCorr(rho, U, phi)
)
);
fvOptions.makeRelative(phiHbyA);
while (pimple.correctNonOrthogonal())
{
fvScalarMatrix pEqn
(
fvm::ddt(psi, p)
+ fvc::div(phiHbyA)
- fvm::laplacian(rhorAUf, p)
==
fvOptions(psi, p, rho.name())
);
fvOptions.constrain(pEqn);
pEqn.solve(mesh.solver(p.select(pimple.finalInnerIter())));
if (pimple.finalNonOrthogonalIter())
{
phi = phiHbyA + pEqn.flux();
}
}
}
#include "rhoEqn.H"
#include "compressibleContinuityErrs.H"
U = HbyA - rAU*fvc::grad(p);
U.correctBoundaryConditions();
fvOptions.correct(U);
K = 0.5*magSqr(U);
if (thermo.dpdt())
{
dpdt = fvc::ddt(p);
}

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Info<< "Reading combustion properties\n" << endl;
IOdictionary combustionProperties
(
IOobject
(
"combustionProperties",
runTime.constant(),
mesh,
IOobject::MUST_READ_IF_MODIFIED,
IOobject::NO_WRITE
)
);
word SuModel
(
combustionProperties.lookup("SuModel")
);
dimensionedScalar sigmaExt
(
combustionProperties.lookup("sigmaExt")
);
word XiModel
(
combustionProperties.lookup("XiModel")
);
dimensionedScalar XiCoef
(
combustionProperties.lookup("XiCoef")
);
dimensionedScalar XiShapeCoef
(
combustionProperties.lookup("XiShapeCoef")
);
dimensionedScalar uPrimeCoef
(
combustionProperties.lookup("uPrimeCoef")
);
ignition ign(combustionProperties, runTime, mesh);

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chemFoam.C
EXE = $(FOAM_APPBIN)/chemFoam

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EXE_INC = \
-I$(LIB_SRC)/finiteVolume/lnInclude \
-I$(LIB_SRC)/turbulenceModels/compressible/turbulenceModel \
-I$(LIB_SRC)/thermophysicalModels/specie/lnInclude \
-I$(LIB_SRC)/thermophysicalModels/thermophysicalFunctions/lnInclude \
-I$(LIB_SRC)/thermophysicalModels/reactionThermo/lnInclude \
-I$(LIB_SRC)/thermophysicalModels/basic/lnInclude \
-I$(LIB_SRC)/thermophysicalModels/laminarFlameSpeed/lnInclude \
-I$(LIB_SRC)/ODE/lnInclude\
-I$(LIB_SRC)/thermophysicalModels/chemistryModel/lnInclude \
EXE_LIBS = \
-lfiniteVolume \
-lcompressibleTurbulenceModel \
-lcompressibleRASModels \
-lreactionThermophysicalModels \
-lfluidThermophysicalModels \
-lchemistryModel \
-lODE \
-lthermophysicalFunctions \
-lspecie

12
applications/solvers/combustion/chemFoam/YEqn.H Normal file
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{
forAll(Y, specieI)
{
volScalarField& Yi = Y[specieI];
solve
(
fvm::ddt(rho, Yi) - chemistry.RR(specieI),
mesh.solver("Yi")
);
}
}

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Application
chemFoam
Description
Solver for chemistry problems
- designed for use on single cell cases to provide comparison against
other chemistry solvers
- single cell mesh created on-the-fly
- fields created on the fly from the initial conditions
\*---------------------------------------------------------------------------*/
#include "fvCFD.H"
#include "psiReactionThermo.H"
#include "turbulenceModel.H"
#include "psiChemistryModel.H"
#include "chemistrySolver.H"
#include "OFstream.H"
#include "thermoPhysicsTypes.H"
#include "basicMultiComponentMixture.H"
#include "cellModeller.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
int main(int argc, char *argv[])
{
argList::noParallel();
#include "setRootCase.H"
#include "createTime.H"
#include "createSingleCellMesh.H"
#include "createFields.H"
#include "readInitialConditions.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Info<< "\nStarting time loop\n" << endl;
while (runTime.run())
{
#include "readControls.H"
#include "setDeltaT.H"
runTime++;
Info<< "Time = " << runTime.timeName() << nl << endl;
#include "solveChemistry.H"
#include "YEqn.H"
#include "hEqn.H"
#include "pEqn.H"
#include "output.H"
Info<< "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
<< " ClockTime = " << runTime.elapsedClockTime() << " s"
<< nl << endl;
}
Info << "Number of steps = " << runTime.timeIndex() << endl;
Info << "End" << nl << endl;
return(0);
}
// ************************************************************************* //

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// write base thermo fields - not registered since will be re-read by
// thermo package
Info<< "Creating base fields for time " << runTime.timeName() << endl;
{
volScalarField Ydefault
(
IOobject
(
"Ydefault",
runTime.timeName(),
mesh,
IOobject::READ_IF_PRESENT,
IOobject::NO_WRITE,
false
),
mesh,
dimensionedScalar("Ydefault", dimless, 1)
);
Ydefault.write();
volScalarField p
(
IOobject
(
"p",
runTime.timeName(),
mesh,
IOobject::READ_IF_PRESENT,
IOobject::NO_WRITE,
false
),
mesh,
dimensionedScalar("p", dimPressure, p0)
);
p.write();
volScalarField T
(
IOobject
(
"T",
runTime.timeName(),
mesh,
IOobject::READ_IF_PRESENT,
IOobject::NO_WRITE,
false
),
mesh,
dimensionedScalar("T", dimTemperature, T0)
);
T.write();
}

105
applications/solvers/combustion/chemFoam/createFields.H Normal file
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@ -0,0 +1,105 @@
if (mesh.nCells() != 1)
{
FatalErrorIn(args.executable())
<< "Solver only applicable to single cell cases"
<< exit(FatalError);
}
Info<< "Reading initial conditions.\n" << endl;
IOdictionary initialConditions
(
IOobject
(
"initialConditions",
runTime.constant(),
runTime,
IOobject::MUST_READ_IF_MODIFIED,
IOobject::NO_WRITE
)
);
scalar p0 = readScalar(initialConditions.lookup("p"));
scalar T0 = readScalar(initialConditions.lookup("T"));
#include "createBaseFields.H"
Info<< nl << "Reading thermophysicalProperties" << endl;
autoPtr<psiChemistryModel> pChemistry(psiChemistryModel::New(mesh));
psiChemistryModel& chemistry = pChemistry();
scalar dtChem = refCast<const psiChemistryModel>(chemistry).deltaTChem()[0];
psiReactionThermo& thermo = chemistry.thermo();
thermo.validate(args.executable(), "h");
basicMultiComponentMixture& composition = thermo.composition();
PtrList<volScalarField>& Y = composition.Y();
volScalarField rho
(
IOobject
(
"rho",
runTime.timeName(),
runTime,
IOobject::NO_READ,
IOobject::AUTO_WRITE
),
thermo.rho()
);
volScalarField& p = thermo.p();
volScalarField Rspecific
(
IOobject
(
"Rspecific",
runTime.timeName(),
runTime,
IOobject::NO_READ,
IOobject::AUTO_WRITE
),
mesh,
dimensionedScalar
(
"zero",
dimensionSet(dimEnergy/dimMass/dimTemperature),
0.0
)
);
volVectorField U
(
IOobject
(
"U",
runTime.timeName(),
runTime,
IOobject::NO_READ,
IOobject::NO_WRITE
),
mesh,
dimensionedVector("zero", dimVelocity, vector::zero),
p.boundaryField().types()
);
#include "createPhi.H"
Info << "Creating turbulence model.\n" << endl;
autoPtr<compressible::turbulenceModel> turbulence
(
compressible::turbulenceModel::New
(
rho,
U,
phi,
thermo
)
);
OFstream post(args.path()/"chemFoam.out");
post<< "# Time" << token::TAB << "Temperature [K]" << token::TAB
<< "Pressure [Pa]" << endl;

46
applications/solvers/combustion/chemFoam/createSingleCellMesh.H Normal file
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@ -0,0 +1,46 @@
Info<< "Constructing single cell mesh" << nl << endl;
labelList owner(6, label(0));
labelList neighbour(0);
pointField points(8);
points[0] = vector(0, 0, 0);
points[1] = vector(1, 0, 0);
points[2] = vector(1, 1, 0);
points[3] = vector(0, 1, 0);
points[4] = vector(0, 0, 1);
points[5] = vector(1, 0, 1);
points[6] = vector(1, 1, 1);
points[7] = vector(0, 1, 1);
const cellModel& hexa = *(cellModeller::lookup("hex"));
faceList faces = hexa.modelFaces();
fvMesh mesh
(
IOobject
(
fvMesh::defaultRegion,
runTime.timeName(),
runTime,
IOobject::READ_IF_PRESENT
),
xferMove<Field<vector> >(points),
faces.xfer(),
owner.xfer(),
neighbour.xfer()
);
List<polyPatch*> patches(1);
patches[0] = new emptyPolyPatch
(
"boundary",
6,
0,
0,
mesh.boundaryMesh(),
emptyPolyPatch::typeName
);
mesh.addFvPatches(patches);

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