alphatPhaseChangeJayatillekeWallFunctionFvPatchScalarField.H

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    Copyright (C) 2021 OpenCFD Ltd.
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Class
    Foam::compressible::
        alphatPhaseChangeJayatillekeWallFunctionFvPatchScalarField
 
Description
    This boundary condition provides a thermal wall function for turbulent
    thermal diffusivity (usually\c alphat) based on the Jayatilleke model for
    the Eulerian multiphase solvers.
 
Usage
    Example of the boundary condition specification:
    \verbatim
    <patchName>
    {
        // Mandatory entries
        type            alphatPhaseChangeJayatillekeWallFunction;
 
        // Optional entries
        Prt             <scalar>;
        Cmu             <scalar>;
        kappa           <scalar>;
        E               <scalar>;
 
        // Inherited entries
        ...
    }
    \endverbatim
 
    where the entries mean:
    \table
      Property  | Description                             | Type | Reqd | Deflt
      type      | Type name:                             <!--
      -->  compressible::alphatPhaseChangeJayatillekeWallFunction <!--
      -->                                                 | word | yes  | -
      Prt       | Turbulent Prandtl number              | scalar | no   | 0.85
      Cmu       | Empirical model coefficient           | scalar | no   | 0.09
      kappa     | Von Karman constant                   | scalar | no   | 0.41
      E         | Wall roughness parameter              | scalar | no   | 9.8
    \endtable
 
    The inherited entries are elaborated in:
      - \link alphatPhaseChangeWallFunctionFvPatchScalarField.H \endlink
 
See also
    Foam::compressible::alphatPhaseChangeWallFunctionFvPatchScalarField
 
SourceFiles
    alphatPhaseChangeJayatillekeWallFunctionFvPatchScalarField.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef compressible_alphatPhaseChangeJayatillekeWallFunctionFvPatchScalarField_H
#define compressible_alphatPhaseChangeJayatillekeWallFunctionFvPatchScalarField_H
 
#include "alphatPhaseChangeWallFunctionFvPatchScalarField.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace compressible
{
 
/*---------------------------------------------------------------------------*\
 Class alphatPhaseChangeJayatillekeWallFunctionFvPatchScalarField Declaration
\*---------------------------------------------------------------------------*/
 
class alphatPhaseChangeJayatillekeWallFunctionFvPatchScalarField
:
    public alphatPhaseChangeWallFunctionFvPatchScalarField
{
protected:
 
    // Protected Data
 
        //- Turbulent Prandtl number
        scalar Prt_;
 
        //- Empirical model coefficient
        scalar Cmu_;
 
        //- Von Karman constant
        scalar kappa_;
 
        //- Wall roughness parameter
        scalar E_;
 
        // Solution parameters
 
            //- Absolute tolerance
            static scalar tolerance_;
 
            //- Maximum number of iterations
            static label maxIters_;
 
 
    // Protected Member Functions
 
        //- Check the type of the patch
        void checkType();
 
        //- 'P' function
        tmp<scalarField> Psmooth(const scalarField& Prat) const;
 
        //- Calculate y+ at the edge of the thermal laminar sublayer
        tmp<scalarField> yPlusTherm
        (
            const scalarField& P,
            const scalarField& Prat
        ) const;
 
        //- Update turbulent thermal diffusivity
        tmp<scalarField> calcAlphat
        (
            const scalarField& prevAlphat
        ) const;
 
 
public:
 
    //- Runtime type information
    TypeName("compressible::alphatPhaseChangeJayatillekeWallFunction");
 
 
    // Constructors
 
        //- Construct from patch and internal field
        alphatPhaseChangeJayatillekeWallFunctionFvPatchScalarField
        (
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&
        );
 
        //- Construct from patch, internal field and dictionary
        alphatPhaseChangeJayatillekeWallFunctionFvPatchScalarField
        (
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&,
            const dictionary&
        );
 
        //- Construct by mapping given
        //- alphatPhaseChangeJayatillekeWallFunctionFvPatchScalarField
        //- onto a new patch
        alphatPhaseChangeJayatillekeWallFunctionFvPatchScalarField
        (
            const alphatPhaseChangeJayatillekeWallFunctionFvPatchScalarField&,
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&,
            const fvPatchFieldMapper&
        );
 
        //- Construct as copy
        alphatPhaseChangeJayatillekeWallFunctionFvPatchScalarField
        (
            const alphatPhaseChangeJayatillekeWallFunctionFvPatchScalarField&
        );
 
        //- Construct and return a clone
        virtual tmp<fvPatchScalarField> clone() const
        {
            return tmp<fvPatchScalarField>
            (
                new alphatPhaseChangeJayatillekeWallFunctionFvPatchScalarField
                (
                    *this
                )
            );
        }
 
        //- Construct as copy setting internal field reference
        alphatPhaseChangeJayatillekeWallFunctionFvPatchScalarField
        (
            const alphatPhaseChangeJayatillekeWallFunctionFvPatchScalarField&,
            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 alphatPhaseChangeJayatillekeWallFunctionFvPatchScalarField
                (
                    *this,
                    iF
                )
            );
        }
 
 
    // Member Functions
 
        // Evaluation
 
            //- Update the coefficients associated with the patch field
            virtual void updateCoeffs();
 
 
        // I-O
 
            //- Write
            virtual void write(Ostream&) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace compressible
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //