fixedCoeff.H

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License
    This file is part of OpenFOAM.
 
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Class
    Foam::porosityModels::fixedCoeff
 
Description
    Fixed coefficient form of porosity model
 
        \f[
            S = - \rho_ref (\alpha + \beta |U|) U
        \f]
 
    In the case of compressible flow, a value for the reference density is
    required
 
SourceFiles
    fixedCoeff.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef fixedCoeff_H
#define fixedCoeff_H
 
#include "porosityModel.H"
#include "dimensionedTensor.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace porosityModels
{
 
/*---------------------------------------------------------------------------*\
                         Class fixedCoeff Declaration
\*---------------------------------------------------------------------------*/
 
class fixedCoeff
:
    public porosityModel
{
    // Private Data
 
        //- Alpha coefficient XYZ components (user-supplied) [1/s]
        dimensionedVector alphaXYZ_;
 
        //- Beta coefficient XYZ components (user-supplied) [1/m]
        dimensionedVector betaXYZ_;
 
        //- Model alpha coefficient - converted from alphaXYZ [1/s]
        tensorField alpha_;
 
        //- Model beta coefficient - converted from betaXYZ [1/m]
        tensorField beta_;
 
        bool rhoRefFound_;
 
        scalar rhoRef_;
 
 
    // Private Member Functions
 
        //- Apply
        void apply
        (
            scalarField& Udiag,
            vectorField& Usource,
            const scalarField& V,
            const vectorField& U,
            const scalar rho
        ) const;
 
        //- Apply
        void apply
        (
            tensorField& AU,
            const vectorField& U,
            const scalar rho
        ) const;
 
 
public:
 
    //- Runtime type information
    TypeName("fixedCoeff");
 
    // Constructors
 
        fixedCoeff
        (
            const word& name,
            const fvMesh& mesh,
            const dictionary& dict,
            const dictionary& coeffDict,
            const word& cellZoneName
        );
 
        //- Disallow default bitwise copy construction
        fixedCoeff(const fixedCoeff&) = delete;
 
 
    //- Destructor
    virtual ~fixedCoeff();
 
 
    // Member Functions
 
        //- Transform the model data wrt mesh changes
        virtual void calcTransformModelData();
 
        //- Calculate the porosity force
        virtual void calcForce
        (
            const volVectorField& U,
            const volScalarField& rho,
            const volScalarField& mu,
            vectorField& force
        ) const;
 
        //- Add resistance
        virtual void correct(fvVectorMatrix& UEqn) const;
 
        //- Add resistance
        virtual void correct
        (
            const fvVectorMatrix& UEqn,
            volTensorField& AU
        ) const;
 
 
    // Member Operators
 
        //- Disallow default bitwise assignment
        void operator=(const fixedCoeff&) = delete;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace porosityModels
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //