fWallFunctionFvPatchScalarField.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::fWallFunctionFvPatchScalarField
 
Group
    grpWallFunctions
 
Description
    This boundary condition provides a turbulence damping function, f, wall
    function condition for low- and high Reynolds number, turbulent flow cases
 
    The model operates in two modes, based on the computed laminar-to-turbulent
    switch-over y+ value derived from kappa and E.
 
    \heading Patch usage
 
    \table
        Property     | Description             | Required    | Default value
        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            fWallFunction;
    }
    \endverbatim
 
SeeAlso
    Foam::fixedValueFvPatchField
 
SourceFiles
    fWallFunctionFvPatchScalarField.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef fWallFunctionFvPatchScalarField_H
#define fWallFunctionFvPatchScalarField_H
 
#include "fixedValueFvPatchField.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace RASModels
{
 
/*---------------------------------------------------------------------------*\
               Class fWallFunctionFvPatchScalarField Declaration
\*---------------------------------------------------------------------------*/
 
class fWallFunctionFvPatchScalarField
:
    public fixedValueFvPatchField<scalar>
{
protected:
 
    // Protected data
 
        //- Cmu coefficient
        scalar Cmu_;
 
        //- Von Karman constant
        scalar kappa_;
 
        //- E coefficient
        scalar E_;
 
        //- Y+ at the edge of the laminar sublayer
        scalar yPlusLam_;
 
 
    // Protected Member Functions
 
        //- Check the type of the patch
        virtual void checkType();
 
        //- Write local wall function variables
        virtual void writeLocalEntries(Ostream&) const;
 
        //- Calculate the Y+ at the edge of the laminar sublayer
        scalar yPlusLam(const scalar kappa, const scalar E);
 
 
public:
 
    //- Runtime type information
    TypeName("fWallFunction");
 
 
    // Constructors
 
        //- Construct from patch and internal field
        fWallFunctionFvPatchScalarField
        (
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&
        );
 
        //- Construct from patch, internal field and dictionary
        fWallFunctionFvPatchScalarField
        (
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&,
            const dictionary&
        );
 
        //- Construct by mapping given fWallFunctionFvPatchScalarField
        //  onto a new patch
        fWallFunctionFvPatchScalarField
        (
            const fWallFunctionFvPatchScalarField&,
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&,
            const fvPatchFieldMapper&
        );
 
        //- Construct as copy
        fWallFunctionFvPatchScalarField
        (
            const fWallFunctionFvPatchScalarField&
        );
 
        //- Construct and return a clone
        virtual tmp<fvPatchScalarField> clone() const
        {
            return tmp<fvPatchScalarField>
            (
                new fWallFunctionFvPatchScalarField(*this)
            );
        }
 
        //- Construct as copy setting internal field reference
        fWallFunctionFvPatchScalarField
        (
            const fWallFunctionFvPatchScalarField&,
            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 fWallFunctionFvPatchScalarField(*this, iF)
            );
        }
 
 
    // Member functions
 
        // Evaluation functions
 
            //- Update the coefficients associated with the patch field
            virtual void updateCoeffs();
 
            //- Evaluate the patchField
            virtual void evaluate(const Pstream::commsTypes);
 
 
        // I-O
 
            //- Write
            virtual void write(Ostream&) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace RASModels
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //