199 lines
4.7 KiB
C++
199 lines
4.7 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) 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::BetaFunction
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Description
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SourceFiles
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BetaFunctionI.H
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BetaFunction.C
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BetaFunctionIO.C
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\*---------------------------------------------------------------------------*/
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#ifndef BetaFunction_H
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#define BetaFunction_H
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#include "scalar.H"
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#include "Switch.H"
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#include "scalarField.H"
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#include "tmp.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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// Forward declaration of classes
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class Istream;
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class Ostream;
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// Forward declaration of friend functions and operators
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namespace CMC
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{
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class BetaFunction;
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}
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Istream& operator>>(Istream&, CMC::BetaFunction&);
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Ostream& operator<<(Ostream&, const CMC::BetaFunction&);
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/*---------------------------------------------------------------------------*\
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Class BetaFunction Declaration
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\*---------------------------------------------------------------------------*/
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namespace CMC
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{
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class BetaFunction
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{
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// Private data
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//- Mean mixture fraction
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scalar mf_;
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//- Mixture fraction variance
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scalar mfVar_;
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//- Beta pdf parameter alpha
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scalar a_;
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//- Beta pdf parameter beta
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scalar b_;
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//- Flag beta pdf special case: forced-delta function
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Switch fdelta_;
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//- delta function at pure oxidizer stream
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Switch delta0_;
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//- delta function at pure fuel stream
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Switch delta1_;
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// Private Member Functions
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//- Calculate alpha and beta and set special case flags
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void _setParameters();
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//- Limit too large value of beta pdf parameters
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void _limitAB();
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//- Disallow default bitwise copy construct
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// BetaFunction(const BetaFunction&);
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//- Disallow default bitwise assignment
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// void operator=(const BetaFunction&);
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public:
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// Static data members
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//- Static data staticData
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// static const scalar staticData;
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// Constructors
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//- Construct from components
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BetaFunction(const scalar mf, const scalar mfVar);
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//- Construct from Istream
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BetaFunction(Istream&);
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//- Construct as copy
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// BetaFunction(const BetaFunction&);
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//- Destructor
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~BetaFunction();
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// Member Functions
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tmp<scalarField> etaFunc(const UList<scalar>& eta) const
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{
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return pow(eta, a_-1.0)*pow(1.0-eta, b_-1.0);
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}
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scalar etaFunc(const scalar eta) const
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{
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return Foam::pow(eta, a_-1.0)*Foam::pow(1.0-eta, b_-1.0);
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}
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// Access
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Switch fdelta() const {return fdelta_;}
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Switch delta0() const {return delta0_;}
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Switch delta1() const {return delta1_;}
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scalar mf() const {return mf_;}
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scalar mfVar() const {return mfVar_;}
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scalar alpha() const {return a_;}
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scalar beta() const {return b_;}
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// Check
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// Edit
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// Write
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// Member Operators
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// void operator=(const BetaFunction&);
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// Friend Functions
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// Friend Operators
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// IOstream Operators
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friend Istream& ::Foam::operator>>(Istream&, BetaFunction&);
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friend Ostream& ::Foam::operator<<(Ostream&, const BetaFunction&);
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};
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace CMC
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} // End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#include "BetaFunctionI.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************************************************************* //
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