nutWallFunctionFvPatchScalarField.H

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Class
    Foam::nutWallFunctionFvPatchScalarField
 
Group
    grpWallFunctions
 
Description
    The class \c nutWallFunction is an abstract base class that
    hosts \f$y^+\f$ calculation methods and common functions for
    \c nut wall-function boundary conditions.
 
Usage
    Example of the boundary condition specification:
    \verbatim
    <patchName>
    {
        // Top-level entries
        ...
 
        // Optional entries
        U             U;
 
        // Inherited entries
        ...
    }
    \endverbatim
 
    where the entries mean:
    \table
      Property  | Description                    | Type   | Reqd  | Deflt
      U         | Name of operand velocity field | word   | no    | U
    \endtable
 
    The inherited entries are elaborated in:
      - \link fixedValueFvPatchFields.H \endlink
      - \link wallFunctionCoefficients.H \endlink
 
SourceFiles
    nutWallFunctionFvPatchScalarField.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef nutWallFunctionFvPatchScalarField_H
#define nutWallFunctionFvPatchScalarField_H
 
#include "fixedValueFvPatchFields.H"
#include "wallFunctionCoefficients.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
class turbulenceModel;
 
/*---------------------------------------------------------------------------*\
             Class nutWallFunctionFvPatchScalarField Declaration
\*---------------------------------------------------------------------------*/
 
class nutWallFunctionFvPatchScalarField
:
    public fixedValueFvPatchScalarField
{
protected:
 
    // Protected Data
 
        //- Name of velocity field
        //  Default is null (not specified) in which case the velocity is
        //  retrieved from the turbulence model
        word UName_;
 
        //- Wall-function coefficients
        wallFunctionCoefficients wallCoeffs_;
 
 
    // Protected Member Functions
 
        //- Helper to return the velocity field either from the turbulence
        //- model (default) or the mesh database
        virtual const volVectorField& U(const turbulenceModel& turb) const;
 
        //- Check the type of the patch
        virtual void checkType();
 
        //- Calculate the turbulent viscosity
        virtual tmp<scalarField> calcNut() const = 0;
 
        //- Write local wall function variables
        void writeLocalEntries(Ostream&) const;
 
 
public:
 
    //- Runtime type information
    TypeName("nutWallFunction");
 
 
    // Constructors
 
        //- Construct from patch and internal field
        nutWallFunctionFvPatchScalarField
        (
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&
        );
 
        //- Construct from patch, internal field and dictionary
        nutWallFunctionFvPatchScalarField
        (
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&,
            const dictionary&
        );
 
        //- Construct by mapping given
        //- nutWallFunctionFvPatchScalarField
        //- onto a new patch
        nutWallFunctionFvPatchScalarField
        (
            const nutWallFunctionFvPatchScalarField&,
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&,
            const fvPatchFieldMapper&
        );
 
        //- Construct as copy
        nutWallFunctionFvPatchScalarField
        (
            const nutWallFunctionFvPatchScalarField&
        );
 
        //- Construct as copy setting internal field reference
        nutWallFunctionFvPatchScalarField
        (
            const nutWallFunctionFvPatchScalarField&,
            const DimensionedField<scalar, volMesh>&
        );
 
        // No clone methods - abstract class
 
 
    // Member Functions
 
        //- Return the nut patchField for the given wall patch
        static const nutWallFunctionFvPatchScalarField& nutw
        (
            const turbulenceModel& turbModel,
            const label patchi
        );
 
        //- Calculate and return the yPlus at the boundary
        //  yPlus is the first-cell-centre height from boundary in wall units
        virtual tmp<scalarField> yPlus() const = 0;
 
        //- Return wallFunctionCoefficients
        inline const wallFunctionCoefficients& wallCoeffs() const noexcept
        {
            return wallCoeffs_;
        }
 
 
        // Evaluation
 
            //- Update the coefficients associated with the patch field
            virtual void updateCoeffs();
 
 
        // I-O
 
            //- Write
            virtual void write(Ostream&) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //