LaheyKEpsilon.H

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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
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    You should have received a copy of the GNU General Public License
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Class
    Foam::RASModels::LaheyKEpsilon
 
Description
    Continuous-phase k-epsilon model including bubble-generated turbulence.
 
    Reference:
    \verbatim
        Lahey Jr, R. T. (2005).
        The simulation of multidimensional multiphase flows.
        Nuclear Engineering and Design, 235(10), 1043-1060.
    \endverbatim
 
    The default model coefficients are
    \verbatim
        LaheyKEpsilonCoeffs
        {
            Cmu             0.09;
            C1              1.44;
            C2              1.92;
            C3              0;
            C4              1.92;
            sigmak          1.0;
            sigmaEps        1.3;
            Cp              0.25;
            Cmub            0.6;
            alphaInversion  0.3;
        }
    \endverbatim
 
SourceFiles
    LaheyKEpsilon.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef LaheyKEpsilon_H
#define LaheyKEpsilon_H
 
#include "kEpsilon.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace RASModels
{
 
/*---------------------------------------------------------------------------*\
                        Class LaheyKEpsilon Declaration
\*---------------------------------------------------------------------------*/
 
template<class BasicMomentumTransportModel>
class LaheyKEpsilon
:
    public kEpsilon<BasicMomentumTransportModel>
{
    // Private Data
 
        mutable const phaseCompressibleMomentumTransportModel
            *gasTurbulencePtr_;
 
 
    // Private Member Functions
 
        //- Return the turbulence model for the gas phase
        const phaseCompressibleMomentumTransportModel& gasTurbulence() const;
 
 
protected:
 
    // Protected data
 
        // Model coefficients
 
            dimensionedScalar alphaInversion_;
            dimensionedScalar Cp_;
            dimensionedScalar C4_;
            dimensionedScalar Cmub_;
 
 
    // Protected Member Functions
 
        virtual void correctNut();
        tmp<volScalarField> bubbleG() const;
        tmp<volScalarField> phaseTransferCoeff() const;
        virtual tmp<fvScalarMatrix> kSource() const;
        virtual tmp<fvScalarMatrix> epsilonSource() const;
 
 
public:
 
    typedef typename BasicMomentumTransportModel::alphaField alphaField;
    typedef typename BasicMomentumTransportModel::rhoField rhoField;
 
 
    //- Runtime type information
    TypeName("LaheyKEpsilon");
 
 
    // Constructors
 
        //- Construct from components
        LaheyKEpsilon
        (
            const alphaField& alpha,
            const rhoField& rho,
            const volVectorField& U,
            const surfaceScalarField& alphaRhoPhi,
            const surfaceScalarField& phi,
            const viscosity& viscosity,
            const word& type = typeName
        );
 
        //- Disallow default bitwise copy construction
        LaheyKEpsilon(const LaheyKEpsilon&) = delete;
 
 
    //- Destructor
    virtual ~LaheyKEpsilon()
    {}
 
 
    // Member Functions
 
        //- Read model coefficients if they have changed
        virtual bool read();
 
        //- Solve the turbulence equations and correct the turbulence viscosity
        virtual void correct();
 
 
    // Member Operators
 
        //- Disallow default bitwise assignment
        void operator=(const LaheyKEpsilon&) = delete;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace RASModels
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
    #include "LaheyKEpsilon.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //