alphatJayatillekeWallFunctionFvPatchScalarField.H

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/*---------------------------------------------------------------------------*\
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License
    This file is part of OpenFOAM.
 
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Class
    Foam::compressible::alphatJayatillekeWallFunctionFvPatchScalarField
 
Group
    grpCmpWallFunctions
 
Description
    This boundary condition provides a thermal wall function for turbulent
    thermal diffusivity (usually\c alphat) based on the Jayatilleke model.
 
    \heading Patch usage
 
    \table
        Property     | Description             | Required    | Default value
        Prt          | turbulent Prandtl number | no         | 0.85
        Cmu          | model coefficient       | no          | 0.09
        kappa        | Von Karman constant     | no          | 0.41
        E            | model coefficient       | no          | 9.8
    \endtable
 
    Example of the boundary condition specification:
    \verbatim
    myPatch
    {
        type            alphatJayatillekeWallFunction;
        Prt             0.85;
        kappa           0.41;
        E               9.8;
        value           uniform 0; // optional value entry
    }
    \endverbatim
 
SeeAlso
    Foam::fixedValueFvPatchField
 
SourceFiles
    alphatJayatillekeWallFunctionFvPatchScalarField.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef alphatJayatillekeWallFunctionFvPatchScalarField_H
#define alphatJayatillekeWallFunctionFvPatchScalarField_H
 
#include "fixedValueFvPatchFields.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace compressible
{
 
/*---------------------------------------------------------------------------*\
      Class alphatJayatillekeWallFunctionFvPatchScalarField Declaration
\*---------------------------------------------------------------------------*/
 
class alphatJayatillekeWallFunctionFvPatchScalarField
:
    public fixedValueFvPatchScalarField
{
    // Private data
 
        //- Turbulent Prandtl number
        scalar Prt_;
 
        //- Cmu coefficient
        scalar Cmu_;
 
        //- Von Karman constant
        scalar kappa_;
 
        //- E coefficient
        scalar E_;
 
 
        // Solution parameters
 
            static scalar maxExp_;
            static scalar tolerance_;
            static label maxIters_;
 
 
    // Private Member Functions
 
        //- Check the type of the patch
        void checkType();
 
        //- `P' function
        scalar Psmooth(const scalar Prat) const;
 
        //- Calculate y+ at the edge of the thermal laminar sublayer
        scalar yPlusTherm
        (
            const scalar P,
            const scalar Prat
        ) const;
 
 
public:
 
    //- Runtime type information
    TypeName("compressible::alphatJayatillekeWallFunction");
 
 
    // Constructors
 
        //- Construct from patch and internal field
        alphatJayatillekeWallFunctionFvPatchScalarField
        (
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&
        );
 
        //- Construct from patch, internal field and dictionary
        alphatJayatillekeWallFunctionFvPatchScalarField
        (
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&,
            const dictionary&
        );
 
        //- Construct by mapping given an
        //  alphatJayatillekeWallFunctionFvPatchScalarField
        //  onto a new patch
        alphatJayatillekeWallFunctionFvPatchScalarField
        (
            const alphatJayatillekeWallFunctionFvPatchScalarField&,
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&,
            const fvPatchFieldMapper&
        );
 
        //- Construct as copy
        alphatJayatillekeWallFunctionFvPatchScalarField
        (
            const alphatJayatillekeWallFunctionFvPatchScalarField&
        );
 
        //- Construct and return a clone
        virtual tmp<fvPatchScalarField> clone() const
        {
            return tmp<fvPatchScalarField>
            (
                new alphatJayatillekeWallFunctionFvPatchScalarField(*this)
            );
        }
 
        //- Construct as copy setting internal field reference
        alphatJayatillekeWallFunctionFvPatchScalarField
        (
            const alphatJayatillekeWallFunctionFvPatchScalarField&,
            const DimensionedField<scalar, volMesh>&
        );
 
        //- Construct and return a clone setting internal field reference
        virtual tmp<fvPatchScalarField> clone
        (
            const DimensionedField<scalar, volMesh>& iF
        ) const
        {
            return tmp<fvPatchScalarField>
            (
                new alphatJayatillekeWallFunctionFvPatchScalarField
                (
                    *this,
                    iF
                )
            );
        }
 
 
    // Member functions
 
        // Evaluation functions
 
            //- Update the coefficients associated with the patch field
            virtual void updateCoeffs();
 
 
        // I-O
 
            //- Write
            void write(Ostream&) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace compressible
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //