zeroGradientFaPatchField.H

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | www.openfoam.com
     \\/     M anipulation  |
-------------------------------------------------------------------------------
    Copyright (C) 2016-2017 Wikki Ltd
    Copyright (C) 2019 OpenCFD Ltd.
-------------------------------------------------------------------------------
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
    (at your option) any later version.
 
    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
    You should have received a copy of the GNU General Public License
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
Class
    Foam::zeroGradientFaPatchField
 
Description
 
Author
    Zeljko Tukovic, FMENA
    Hrvoje Jasak, Wikki Ltd.
 
SourceFiles
    zeroGradientFaPatchField.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef Foam_zeroGradientFaPatchField_H
#define Foam_zeroGradientFaPatchField_H
 
#include "faPatchField.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                  Class zeroGradientFaPatchField Declaration
\*---------------------------------------------------------------------------*/
 
template<class Type>
class zeroGradientFaPatchField
:
    public faPatchField<Type>
{
public:
 
    //- Runtime type information
    TypeName("zeroGradient");  // fieldTypes::zeroGradientTypeName_()
 
 
    // Constructors
 
        //- Construct from patch and internal field
        zeroGradientFaPatchField
        (
            const faPatch&,
            const DimensionedField<Type, areaMesh>&
        );
 
        //- Construct from patch, internal field and dictionary
        zeroGradientFaPatchField
        (
            const faPatch&,
            const DimensionedField<Type, areaMesh>&,
            const dictionary&
        );
 
        //- Construct by mapping the given zeroGradient patch field
        //- onto a new patch
        zeroGradientFaPatchField
        (
            const zeroGradientFaPatchField<Type>&,
            const faPatch&,
            const DimensionedField<Type, areaMesh>&,
            const faPatchFieldMapper&
        );
 
        //- Construct as copy
        zeroGradientFaPatchField
        (
            const zeroGradientFaPatchField<Type>&
        );
 
        //- Construct as copy setting internal field reference
        zeroGradientFaPatchField
        (
            const zeroGradientFaPatchField<Type>&,
            const DimensionedField<Type, areaMesh>&
        );
 
        //- Return clone
        virtual tmp<faPatchField<Type>> clone() const
        {
            return faPatchField<Type>::Clone(*this);
        }
 
        //- Clone with an internal field reference
        virtual tmp<faPatchField<Type>> clone
        (
            const DimensionedField<Type, areaMesh>& iF
        ) const
        {
            return faPatchField<Type>::Clone(*this, iF);
        }
 
 
    // Member Functions
 
        // Evaluation Functions
 
            //- Return patch-normal gradient
            virtual tmp<Field<Type>> snGrad() const
            {
                // zero-gradient
                return tmp<Field<Type>>::New(this->size(), Foam::zero{});
            }
 
            //- Retrieve patch-normal gradient [contiguous storage]
            virtual void snGrad(UList<Type>& result) const
            {
                // zero-gradient
                result = Foam::zero{};
            }
 
            //- Evaluate the patch field
            virtual void evaluate
            (
                const Pstream::commsTypes commsType =
                    Pstream::commsTypes::buffered
            );
 
            //- Return the matrix diagonal coefficients corresponding to the
            //- evaluation of the value of this patchField with given weights
            virtual tmp<Field<Type>> valueInternalCoeffs
            (
                const tmp<scalarField>&
            ) const;
 
            //- Return the matrix source coefficients corresponding to the
            //- evaluation of the value of this patchField with given weights
            virtual tmp<Field<Type>> valueBoundaryCoeffs
            (
                const tmp<scalarField>&
            ) const;
 
            //- Return the matrix diagonal coefficients corresponding to the
            //- evaluation of the gradient of this patchField
            virtual tmp<Field<Type>> gradientInternalCoeffs() const;
 
            //- Return the matrix source coefficients corresponding to the
            //- evaluation of the gradient of this patchField
            virtual tmp<Field<Type>> gradientBoundaryCoeffs() const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
    #include "zeroGradientFaPatchField.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //