atmAlphatkWallFunctionFvPatchScalarField.H

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    Copyright (C) 2020 ENERCON GmbH
    Copyright (C) 2020-2022 OpenCFD Ltd.
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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
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    for more details.
 
    You should have received a copy of the GNU General Public License
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Class
    Foam::atmAlphatkWallFunctionFvPatchScalarField
 
Group
    grpAtmWallFunctions
 
Description
    This boundary condition provides a wall constraint on the kinematic
    turbulent thermal conductivity (i.e. \c alphat) for atmospheric boundary
    layer modelling.  It assumes a logarithmic distribution of the potential
    temperature within the first cell.
 
    Required fields:
    \verbatim
      alphat    | Kinematic turbulent thermal conductivity    [m2/s]
    \endverbatim
 
Usage
    Example of the boundary condition specification:
    \verbatim
    <patchName>
    {
        // Mandatory entries
        type            atmAlphatkWallFunction;
        Pr              <Function1<scalar>>;
        Prt             <PatchFunction1<scalar>>;
        z0              <PatchFunction1<scalar>>;
 
        // Optional entries
        Cmu             <scalar>;
        kappa           <scalar>;
 
        // Inherited entries
        ...
    }
    \endverbatim
 
    where the entries mean:
    \table
      Property | Description                       | Type   | Reqd     | Deflt
      type     | Type name: atmAlphatkWallFunction | word   | yes      | -
      Pr       | Molecular Prandtl number     | Function1<scalar>  | yes | -
      Prt      | Turbulent Prandtl number     | PatchFunction1<scalar> | yes | -
      z0       | Surface roughness length [m] | PatchFunction1<scalar> | yes | -
      Cmu      | Empirical model constant         | scalar | no        | 0.09
      kappa    | von Kármán constant              | scalar | no        | 0.41
    \endtable
 
    The inherited entries are elaborated in:
      - \link fixedValueFvPatchField.H \endlink
      - \link Function1.H \endlink
      - \link PatchFunction1.H \endlink
 
SourceFiles
    atmAlphatkWallFunctionFvPatchScalarField.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef atmAlphatkWallFunctionFvPatchScalarField_H
#define atmAlphatkWallFunctionFvPatchScalarField_H
 
#include "fixedValueFvPatchFields.H"
#include "Function1.H"
#include "PatchFunction1.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
class turbulenceModel;
 
/*---------------------------------------------------------------------------*\
       Class atmAlphatkWallFunctionFvPatchScalarField Declaration
\*---------------------------------------------------------------------------*/
 
class atmAlphatkWallFunctionFvPatchScalarField
:
    public fixedValueFvPatchScalarField
{
protected:
 
    // Protected Data
 
        //- Empirical model constant
        const scalar Cmu_;
 
        //- von Kármán constant
        const scalar kappa_;
 
        //- Molecular Prandtl number
        autoPtr<Function1<scalar>> Pr_;
 
        //- Turbulent Prandtl number field
        autoPtr<PatchFunction1<scalar>> Prt_;
 
        //- Surface roughness length [m]
        autoPtr<PatchFunction1<scalar>> z0_;
 
 
        //- Solution parameters
 
            static scalar tolerance_;
            static label maxIters_;
 
 
    // Protected Member Functions
 
        //- Check the type of the patch
        virtual void checkType();
 
        //- Write local wall function variables
        void writeLocalEntries(Ostream&) const;
 
 
public:
 
    //- Runtime type information
    TypeName("atmAlphatkWallFunction");
 
 
    // Constructors
 
        //- Construct from patch and internal field
        atmAlphatkWallFunctionFvPatchScalarField
        (
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&
        );
 
        //- Construct from patch, internal field and dictionary
        atmAlphatkWallFunctionFvPatchScalarField
        (
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&,
            const dictionary&
        );
 
        //- Construct by mapping given
        //- atmAlphatkWallFunctionFvPatchScalarField
        //- onto a new patch
        atmAlphatkWallFunctionFvPatchScalarField
        (
            const atmAlphatkWallFunctionFvPatchScalarField&,
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&,
            const fvPatchFieldMapper&
        );
 
        //- Construct as copy
        atmAlphatkWallFunctionFvPatchScalarField
        (
            const atmAlphatkWallFunctionFvPatchScalarField&
        );
 
        //- Construct as copy setting internal field reference
        atmAlphatkWallFunctionFvPatchScalarField
        (
            const atmAlphatkWallFunctionFvPatchScalarField&,
            const DimensionedField<scalar, volMesh>&
        );
 
        //- Return a clone
        virtual tmp<fvPatchField<scalar>> clone() const
        {
            return fvPatchField<scalar>::Clone(*this);
        }
 
        //- Clone with an internal field reference
        virtual tmp<fvPatchField<scalar>> clone
        (
            const DimensionedField<scalar, volMesh>& iF
        ) const
        {
            return fvPatchField<scalar>::Clone(*this, iF);
        }
 
 
    // Member Functions
 
        // Evaluation
 
            //- Update the coefficients associated with the patch field
            virtual void updateCoeffs();
 
 
        // Mapping
 
            //- Map (and resize as needed) from self given a mapping object
            virtual void autoMap(const fvPatchFieldMapper&);
 
            //- Reverse map the given fvPatchField onto this fvPatchField
            virtual void rmap
            (
                const fvPatchScalarField&,
                const labelList&
            );
 
 
        // I-O
 
            //- Write
            virtual void write(Ostream&) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //