nutkFilmWallFunctionFvPatchScalarField.H

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License
    This file is part of OpenFOAM.
 
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Class
    Foam::compressible::RASModels::nutkFilmWallFunctionFvPatchScalarField
 
Group
    grpSurfaceFilmBoundaryConditions grpCmpWallFunctions
 
Description
    This boundary condition provides a turbulent viscosity condition when
    using wall functions, based on turbulence kinetic energy, for use with
    surface film models.
 
Usage
    Example of the boundary condition specification:
    \verbatim
    <patchName>
    {
        // Mandatory entries
        type            nutkFilmWallFunction;
 
        // Optional entries
        filmRegion      <word>;
        B               <scalar>;
        yPlusCrit       <scalar>;
 
        // Inherited entries
        ...
    }
    \endverbatim
 
    where the entries mean:
    \table
      Property   | Description                    | Type   | Reqd  | Deflt
      type       | Type name: alphatFilmWallFunction | word | yes  | -
      filmRegion | Name of film region   | word | no | surfaceFilmProperties
      B          | Model coefficient              | scalar | no    | 5.5
      yPlusCrit  | Critical y+ for transition to turbulence | scalar | no | 11.5
    \endtable
 
    The inherited entries are elaborated in:
      - \link nutkWallFunctionFvPatchScalarField.H \endlink
 
SourceFiles
    nutkFilmWallFunctionFvPatchScalarField.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef nutkFilmWallFunctionFvPatchScalarField_H
#define nutkFilmWallFunctionFvPatchScalarField_H
 
#include "nutkWallFunctionFvPatchScalarField.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace compressible
{
namespace RASModels
{
 
/*---------------------------------------------------------------------------*\
         Class nutkFilmWallFunctionFvPatchScalarField Declaration
\*---------------------------------------------------------------------------*/
 
class nutkFilmWallFunctionFvPatchScalarField
:
    public nutkWallFunctionFvPatchScalarField
{
protected:
 
    // Protected Data
 
        //- Name of film region
        word filmRegionName_;
 
        //- B Coefficient
        scalar B_;
 
        //- y+ value for laminar -> turbulent transition
        scalar yPlusCrit_;
 
 
    // Protected Member Functions
 
        //- Calculate the turbulence viscosity
        virtual tmp<scalarField> calcNut() const;
 
        //- Calculate the friction velocity
        tmp<scalarField> calcUTau(const scalarField& magGradU) const;
 
        //- Write local wall function variables
        void writeLocalEntries(Ostream&) const;
 
 
public:
 
    //- Runtime type information
    TypeName("nutkFilmWallFunction");
 
 
    // Constructors
 
        //- Construct from patch and internal field
        nutkFilmWallFunctionFvPatchScalarField
        (
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&
        );
 
        //- Construct from patch, internal field and dictionary
        nutkFilmWallFunctionFvPatchScalarField
        (
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&,
            const dictionary&
        );
 
        //- Construct by mapping given
        //- nutkFilmWallFunctionFvPatchScalarField
        //- onto a new patch
        nutkFilmWallFunctionFvPatchScalarField
        (
            const nutkFilmWallFunctionFvPatchScalarField&,
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&,
            const fvPatchFieldMapper&
        );
 
        //- Construct as copy
        nutkFilmWallFunctionFvPatchScalarField
        (
            const nutkFilmWallFunctionFvPatchScalarField&
        );
 
        //- Construct and return a clone
        virtual tmp<fvPatchScalarField> clone() const
        {
            return tmp<fvPatchScalarField>
            (
                new nutkFilmWallFunctionFvPatchScalarField(*this)
            );
        }
 
        //- Construct as copy setting internal field reference
        nutkFilmWallFunctionFvPatchScalarField
        (
            const nutkFilmWallFunctionFvPatchScalarField&,
            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 nutkFilmWallFunctionFvPatchScalarField(*this, iF)
            );
        }
 
 
    // Member Functions
 
        // Evaluation
 
            //- Calculate and return the yPlus at the boundary
            virtual tmp<scalarField> yPlus() const;
 
 
        // I-O
 
            //- Write
            virtual void write(Ostream& os) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace RASModels
} // End namespace compressible
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //