NicenoKEqn.H

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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 BasicTurbulenceModel>
class NicenoKEqn
:
    public kEqn<BasicTurbulenceModel>
{
    // Private data

        mutable const PhaseCompressibleTurbulenceModel
        <
            typename BasicTurbulenceModel::transportModel
        > *gasTurbulencePtr_;


    // Private Member Functions

        //- Return the turbulence model for the gas phase
        const PhaseCompressibleTurbulenceModel
        <
            typename BasicTurbulenceModel::transportModel
        >&
        gasTurbulence() const;

        // Disallow default bitwise copy construct and assignment
        NicenoKEqn(const NicenoKEqn&);
        void operator=(const NicenoKEqn&);


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 BasicTurbulenceModel::alphaField alphaField;
    typedef typename BasicTurbulenceModel::rhoField rhoField;
    typedef typename BasicTurbulenceModel::transportModel transportModel;


    //- 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 transportModel& transport,
            const word& propertiesName = turbulenceModel::propertiesName,
            const word& type = typeName
        );


    //- Destructor
    virtual ~NicenoKEqn()
    {}


    // Member Functions

        //- Read model coefficients if they have changed
        virtual bool read();
};


// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

} // End namespace LESModels
} // End namespace Foam

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

#ifdef NoRepository
    #include "NicenoKEqn.C"
#endif

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

#endif

// ************************************************************************* //