kOmegaSSTSAS.H

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License
    This file is part of OpenFOAM.
 
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Class
    Foam::RASModels::kOmegaSSTSAS
 
Description
    Scale-adaptive URAS model based on the k-omega-SST RAS model.
 
    References:
    \verbatim
        Egorov, Y., & Menter F.R. (2008).
        Development and Application of SST-SAS Model in the DESIDER Project.
        Advances in Hybrid RANS-LES Modelling,
        Notes on Num. Fluid Mech. And Multidisciplinary Design,
        Volume 97, 261-270.
    \endverbatim
 
    The model coefficients are
    \verbatim
        kOmegaSSTSASCoeffs
        {
            // Default SST coefficients
            alphaK1     0.85;
            alphaK2     1.0;
            alphaOmega1 0.5;
            alphaOmega2 0.856;
            beta1       0.075;
            beta2       0.0828;
            betaStar    0.09;
            gamma1      5/9;
            gamma2      0.44;
            a1          0.31;
            b1          1.0;
            c1          10.0;
            F3          no;
 
            // Default SAS coefficients
            Cs          0.11;
            kappa       0.41;
            zeta2       3.51;
            sigmaPhi    2.0/3.0;
            C           2;
 
            // Delta must be specified for SAS e.g.
            delta cubeRootVol;
 
            cubeRootVolCoeffs
            {}
        }
    \endverbatim
 
SourceFiles
    kOmegaSSTSAS.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef kOmegaSSTSAS_H
#define kOmegaSSTSAS_H
 
#include "kOmegaSST.H"
#include "LESdelta.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace RASModels
{
 
/*---------------------------------------------------------------------------*\
                        Class kOmegaSSTSAS Declaration
\*---------------------------------------------------------------------------*/
 
template<class BasicMomentumTransportModel>
class kOmegaSSTSAS
:
    public kOmegaSST<BasicMomentumTransportModel>
{
protected:
 
    // Protected data
 
        // Model constants
 
            dimensionedScalar Cs_;
            dimensionedScalar kappa_;
            dimensionedScalar zeta2_;
            dimensionedScalar sigmaPhi_;
            dimensionedScalar C_;
 
 
        // Fields
 
            //- Run-time selectable delta model
            autoPtr<Foam::LESdelta> delta_;
 
 
    // Protected Member Functions
 
        //- SAS omega source
        virtual tmp<fvScalarMatrix> Qsas
        (
            const volScalarField::Internal& S2,
            const volScalarField::Internal& gamma,
            const volScalarField::Internal& beta
        ) const;
 
 
public:
 
    typedef typename BasicMomentumTransportModel::alphaField alphaField;
    typedef typename BasicMomentumTransportModel::rhoField rhoField;
 
 
    //- Runtime type information
    TypeName("kOmegaSSTSAS");
 
 
    // Constructors
 
        //- Construct from components
        kOmegaSSTSAS
        (
            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
        kOmegaSSTSAS(const kOmegaSSTSAS&) = delete;
 
 
    //- Destructor
    virtual ~kOmegaSSTSAS()
    {}
 
 
    // Member Functions
 
        //- Re-read model coefficients if they have changed
        virtual bool read();
 
        //- Access function to filter width
        inline const volScalarField& delta() const
        {
            return delta_();
        }
 
 
    // Member Operators
 
        //- Disallow default bitwise assignment
        void operator=(const kOmegaSSTSAS&) = delete;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace RASModels
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
    #include "kOmegaSSTSAS.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //