NicenoKEqn.H

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License
    This file is part of OpenFOAM.
 
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Class
    Foam::LESModels::NicenoKEqn
 
Description
    One-equation SGS model for the continuous phase in a two-phase system
    including bubble-generated turbulence.
 
    Reference:
    \verbatim
        Niceno, B., Dhotre, M. T., & Deen, N. G. (2008).
        One-equation sub-grid scale (SGS) modelling for
        Euler–Euler large eddy simulation (EELES) of dispersed bubbly flow.
        Chemical Engineering Science, 63(15), 3923-3931.
    \endverbatim
 
    The default model coefficients are:
    \verbatim
        NicenoKEqnCoeffs
        {
            Ck              0.094;
            Ce              1.048;
            alphaInversion  0.3;
            Cp              Ck;
            Cmub            0.6;
        }
    \endverbatim
 
SourceFiles
    NicenoKEqn.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef NicenoKEqn_H
#define NicenoKEqn_H
 
#include "kEqn.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace LESModels
{
 
/*---------------------------------------------------------------------------*\
                         Class NicenoKEqn Declaration
\*---------------------------------------------------------------------------*/
 
template<class BasicMomentumTransportModel>
class NicenoKEqn
:
    public kEqn<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 Cmub_;
 
 
    // Protected Member Functions
 
        virtual void correctNut();
        tmp<volScalarField> bubbleG() const;
        tmp<volScalarField> phaseTransferCoeff() const;
        virtual tmp<fvScalarMatrix> kSource() const;
 
 
public:
 
    typedef typename BasicMomentumTransportModel::alphaField alphaField;
    typedef typename BasicMomentumTransportModel::rhoField rhoField;
 
 
    //- Runtime type information
    TypeName("NicenoKEqn");
 
 
    // Constructors
 
        //- Construct from components
        NicenoKEqn
        (
            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
        NicenoKEqn(const NicenoKEqn&) = delete;
 
 
    //- Destructor
    virtual ~NicenoKEqn()
    {}
 
 
    // Member Functions
 
        //- Read model coefficients if they have changed
        virtual bool read();
 
 
    // Member Operators
 
        //- Disallow default bitwise assignment
        void operator=(const NicenoKEqn&) = delete;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace LESModels
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
    #include "NicenoKEqn.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //