190 lines
5.7 KiB
C++
190 lines
5.7 KiB
C++
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 2012-2016 OpenFOAM Foundation
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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Class
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Foam::epsilonLowReWallFunctionFvPatchScalarField
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Group
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grpWallFunctions
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Description
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This boundary condition provides a turbulence dissipation wall function
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condition for low- and high-Reynolds number turbulent flow cases.
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The condition can be applied to wall boundaries, whereby it inserts near
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wall epsilon values directly into the epsilon equation to act as a
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constraint.
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The model operates in two modes, based on the computed laminar-to-turbulent
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switch-over y+ value derived from kappa and E.
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Usage
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\table
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Property | Description | Required | Default value
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Cmu | model coefficient | no | 0.09
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kappa | Von Karman constant | no | 0.41
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E | model coefficient | no | 9.8
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\endtable
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Example of the boundary condition specification:
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\verbatim
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<patchName>
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{
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type epsilonLowReWallFunction;
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}
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\endverbatim
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See also
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Foam::epsilonWallFunctionFvPatchScalarField
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SourceFiles
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epsilonLowReWallFunctionFvPatchScalarField.C
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\*---------------------------------------------------------------------------*/
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#ifndef epsilonLowReWallFunctionFvPatchScalarField_H
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#define epsilonLowReWallFunctionFvPatchScalarField_H
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#include "epsilonWallFunctionFvPatchScalarField.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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/*---------------------------------------------------------------------------*\
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Class epsilonLowReWallFunctionFvPatchScalarField Declaration
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\*---------------------------------------------------------------------------*/
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class epsilonLowReWallFunctionFvPatchScalarField
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:
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public epsilonWallFunctionFvPatchScalarField
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{
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protected:
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// Protected data
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//- Y+ at the edge of the laminar sublayer
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scalar yPlusLam_;
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// Protected Member Functions
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//- Calculate the Y+ at the edge of the laminar sublayer
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scalar yPlusLam(const scalar kappa, const scalar E);
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//- Calculate the epsilon and G
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virtual void calculate
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(
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const turbulenceModel& turbulence,
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const List<scalar>& cornerWeights,
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const fvPatch& patch,
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scalarField& G,
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scalarField& epsilon
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);
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public:
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//- Runtime type information
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TypeName("epsilonLowReWallFunction");
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// Constructors
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//- Construct from patch and internal field
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epsilonLowReWallFunctionFvPatchScalarField
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(
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const fvPatch&,
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const DimensionedField<scalar, volMesh>&
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);
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//- Construct from patch, internal field and dictionary
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epsilonLowReWallFunctionFvPatchScalarField
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(
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const fvPatch&,
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const DimensionedField<scalar, volMesh>&,
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const dictionary&
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);
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//- Construct by mapping given
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// epsilonLowReWallFunctionFvPatchScalarField
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// onto a new patch
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epsilonLowReWallFunctionFvPatchScalarField
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(
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const epsilonLowReWallFunctionFvPatchScalarField&,
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const fvPatch&,
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const DimensionedField<scalar, volMesh>&,
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const fvPatchFieldMapper&
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);
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//- Construct as copy
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epsilonLowReWallFunctionFvPatchScalarField
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(
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const epsilonLowReWallFunctionFvPatchScalarField&
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);
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//- Construct and return a clone
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virtual tmp<fvPatchScalarField> clone() const
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{
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return tmp<fvPatchScalarField>
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(
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new epsilonLowReWallFunctionFvPatchScalarField(*this)
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);
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}
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//- Construct as copy setting internal field reference
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epsilonLowReWallFunctionFvPatchScalarField
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(
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const epsilonLowReWallFunctionFvPatchScalarField&,
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const DimensionedField<scalar, volMesh>&
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);
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//- Construct and return a clone setting internal field reference
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virtual tmp<fvPatchScalarField> clone
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(
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const DimensionedField<scalar, volMesh>& iF
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) const
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{
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return tmp<fvPatchScalarField>
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(
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new epsilonLowReWallFunctionFvPatchScalarField(*this, iF)
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);
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}
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//- Destructor
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virtual ~epsilonLowReWallFunctionFvPatchScalarField()
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{}
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};
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************************************************************* //
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