kOmegaSSTSAS.H

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/*---------------------------------------------------------------------------*\
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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
    (at your option) any later version.
 
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    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
    You should have received a copy of the GNU General Public License
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
Class
    Foam::RASModels::kOmegaSSTSAS
 
Group
    grpLESTurbulence
 
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 BasicTurbulenceModel>
class kOmegaSSTSAS
:
    public kOmegaSST<BasicTurbulenceModel>
{
    // Private Member Functions
 
        // Disallow default bitwise copy construct and assignment
        kOmegaSSTSAS(const kOmegaSSTSAS&);
        kOmegaSSTSAS& operator=(const kOmegaSSTSAS&);
 
 
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& S2,
            const volScalarField& gamma,
            const volScalarField& beta
        ) const;
 
 
public:
 
    typedef typename BasicTurbulenceModel::alphaField alphaField;
    typedef typename BasicTurbulenceModel::rhoField rhoField;
    typedef typename BasicTurbulenceModel::transportModel transportModel;
 
 
    //- 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 transportModel& transport,
            const word& propertiesName = turbulenceModel::propertiesName,
            const word& type = typeName
        );
 
 
    //- 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_();
        }
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace RASModels
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
#   include "kOmegaSSTSAS.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //