reverseLinear.H

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/*---------------------------------------------------------------------------*\
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    \\  /    A nd           | www.openfoam.com
     \\/     M anipulation  |
-------------------------------------------------------------------------------
    Copyright (C) 2011-2016 OpenFOAM Foundation
-------------------------------------------------------------------------------
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
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    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::reverseLinear
 
Group
    grpFvSurfaceInterpolationSchemes
 
Description
    Inversed weight central-differencing interpolation scheme class.
 
    Useful for inverse weighted and harmonic interpolations.
 
SourceFiles
    reverseLinear.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef reverseLinear_H
#define reverseLinear_H
 
#include "surfaceInterpolationScheme.H"
#include "volFields.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                       Class reverseLinear Declaration
\*---------------------------------------------------------------------------*/
 
template<class Type>
class reverseLinear
:
    public surfaceInterpolationScheme<Type>
{
    // Private Member Functions
 
        //- No copy assignment
        void operator=(const reverseLinear&) = delete;
 
 
public:
 
    //- Runtime type information
    TypeName("reverseLinear");
 
 
    // Constructors
 
        //- Construct from mesh
        reverseLinear(const fvMesh& mesh)
        :
            surfaceInterpolationScheme<Type>(mesh)
        {}
 
        //- Construct from Istream
        reverseLinear(const fvMesh& mesh, Istream&)
        :
            surfaceInterpolationScheme<Type>(mesh)
        {}
 
        //- Construct from faceFlux and Istream
        reverseLinear
        (
            const fvMesh& mesh,
            const surfaceScalarField&,
            Istream&
        )
        :
            surfaceInterpolationScheme<Type>(mesh)
        {}
 
 
    // Member Functions
 
        //- Return the interpolation weighting factors
        tmp<surfaceScalarField> weights
        (
            const GeometricField<Type, fvPatchField, volMesh>&
        ) const
        {
            const fvMesh& mesh = this->mesh();
 
            tmp<surfaceScalarField> tcdWeights
            (
                mesh.surfaceInterpolation::weights()
            );
            const surfaceScalarField& cdWeights = tcdWeights();
 
            auto treverseLinearWeights = surfaceScalarField::New
            (
                "reverseLinearWeights",
                IOobject::NO_REGISTER,
                mesh,
                dimless
            );
            auto& reverseLinearWeights = treverseLinearWeights.ref();
 
            reverseLinearWeights.primitiveFieldRef() =
                1.0 - cdWeights.primitiveField();
 
            auto& rlwbf = reverseLinearWeights.boundaryFieldRef();
 
 
            forAll(mesh.boundary(), patchi)
            {
                if (rlwbf[patchi].coupled())
                {
                    rlwbf[patchi] = 1.0 - cdWeights.boundaryField()[patchi];
                }
                else
                {
                    rlwbf[patchi] = cdWeights.boundaryField()[patchi];
                }
            }
 
            return treverseLinearWeights;
        }
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //