fixedFluxPressureFvPatchScalarField.H

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2016-2021 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
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    the Free Software Foundation, either version 3 of the License, or
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    You should have received a copy of the GNU General Public License
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Class
    Foam::fixedFluxPressureFvPatchScalarField
 
Group
    grpInletBoundaryConditions grpWallBoundaryConditions
 
Description
    This boundary condition sets the pressure gradient to the provided value
    such that the flux on the boundary is that specified by the velocity
    boundary condition.
 
    Example of the boundary condition specification:
    \verbatim
    <patchName>
    {
        type            fixedFluxPressure;
    }
    \endverbatim
 
See also
    Foam::fixedGradientFvPatchField
 
SourceFiles
    fixedFluxPressureFvPatchScalarField.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef fixedFluxPressureFvPatchScalarField_H
#define fixedFluxPressureFvPatchScalarField_H
 
#include "fvPatchFields.H"
#include "fixedGradientFvPatchFields.H"
#include "updateableSnGrad.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
             Class fixedFluxPressureFvPatchScalarField Declaration
\*---------------------------------------------------------------------------*/
 
class fixedFluxPressureFvPatchScalarField
:
    public fixedGradientFvPatchScalarField,
    public updateablePatchTypes::updateableSnGrad
{
    // Private data
 
        //- Current time index (used for updating)
        label curTimeIndex_;
 
 
public:
 
    //- Runtime type information
    TypeName("fixedFluxPressure");
 
 
    // Constructors
 
        //- Construct from patch and internal field
        fixedFluxPressureFvPatchScalarField
        (
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&
        );
 
        //- Construct from patch, internal field and dictionary
        fixedFluxPressureFvPatchScalarField
        (
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&,
            const dictionary&
        );
 
        //- Construct by mapping given fixedFluxPressureFvPatchScalarField onto
        //  a new patch
        fixedFluxPressureFvPatchScalarField
        (
            const fixedFluxPressureFvPatchScalarField&,
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&,
            const fvPatchFieldMapper&
        );
 
        //- Construct as copy
        fixedFluxPressureFvPatchScalarField
        (
            const fixedFluxPressureFvPatchScalarField&
        );
 
        //- Construct as copy setting internal field reference
        fixedFluxPressureFvPatchScalarField
        (
            const fixedFluxPressureFvPatchScalarField&,
            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
 
        //- Update the patch pressure gradient field from the given snGradp
        virtual void updateSnGrad(const scalarField& snGradp);
 
        //- Update the patch pressure gradient field
        virtual void updateCoeffs();
 
        //- Write
        virtual void write(Ostream&) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#include "volFields.H"
 
namespace Foam
{
    template<class GradBC>
    inline void setSnGrad
    (
        volScalarField::Boundary& bf,
        const FieldField<fvsPatchField, scalar>& snGrad
    )
    {
        forAll(bf, patchi)
        {
            if (isA<GradBC>(bf[patchi]))
            {
                refCast<GradBC>(bf[patchi]).updateSnGrad(snGrad[patchi]);
            }
        }
    }
 
    template<class GradBC>
    inline void setSnGrad
    (
        volScalarField::Boundary& bf,
        const tmp<FieldField<fvsPatchField, scalar>>& tsnGrad
    )
    {
        setSnGrad<GradBC>(bf, tsnGrad());
    }
}
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //