uncorrectedLnGrad.H

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/*---------------------------------------------------------------------------*\
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  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | www.openfoam.com
     \\/     M anipulation  |
-------------------------------------------------------------------------------
    Copyright (C) 2022 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
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    You should have received a copy of the GNU General Public License
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Class
    Foam::fa::uncorrectedLnGrad

Description
    Simple central-difference lnGrad scheme with no non-orthogonal correction.

SourceFiles
    uncorrectedLnGrad.C

\*---------------------------------------------------------------------------*/

#ifndef Foam_fa_uncorrectedLnGrad_H
#define Foam_fa_uncorrectedLnGrad_H

#include "lnGradScheme.H"

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

namespace Foam
{

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

namespace fa
{

/*---------------------------------------------------------------------------*\
                       Class uncorrectedLnGrad Declaration
\*---------------------------------------------------------------------------*/

template<class Type>
class uncorrectedLnGrad
:
    public lnGradScheme<Type>
{
    // Private Member Functions

        //- No copy assignment
        void operator=(const uncorrectedLnGrad&) = delete;


public:

    //- Runtime type information
    TypeName("uncorrected");


    // Constructors

        //- Construct from mesh
        uncorrectedLnGrad(const faMesh& mesh)
        :
            lnGradScheme<Type>(mesh)
        {}

        //- Construct from mesh and data stream
        uncorrectedLnGrad(const faMesh& mesh, Istream&)
        :
            lnGradScheme<Type>(mesh)
        {}


    //- Destructor
    virtual ~uncorrectedLnGrad() = default;


    // Member Functions

        //- Return the interpolation weighting factors for the given field
        virtual tmp<edgeScalarField> deltaCoeffs
        (
            const GeometricField<Type, faPatchField, areaMesh>&
        ) const
        {
            return this->mesh().deltaCoeffs();
        }

        //- Return true if this scheme uses an explicit correction
        virtual bool corrected() const
        {
            return false;
        }

        //- Return the explicit correction to the uncorrectedLnGrad
        //- for the given field
        virtual tmp<GeometricField<Type, faePatchField, edgeMesh>>
        correction(const GeometricField<Type, faPatchField, areaMesh>&) const;
};


// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

} // End namespace fa

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

} // End namespace Foam

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

#ifdef NoRepository
    #include "uncorrectedLnGrad.C"
#endif

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

#endif

// ************************************************************************* //