leastSquaresStencil.H

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    Copyright (C) 2011-2016 OpenFOAM Foundation
    Copyright (C) 2019 OpenCFD Ltd.
    Copyright (C) 2016-2019 ISP RAS (www.ispras.ru) UniCFD Group (www.unicfd.ru)
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License
    This file is part of QGDsolver library, based on 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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Class
   Foam::fvsc::leastSquares::leastSquaresStencil
Description 
   Realisation least squares method for calculationg of differential operators
Source file
    leastSquaresStencil.C 
\*---------------------------------------------------------------------------*/


#ifndef leastSquaresStencil_H
#define leastSquaresStencil_H

#include "fvscStencil.H"
#include "regIOobject.H"
#include "labelList.H"

#include "volFields.H"
#include "surfaceFields.H"
#include "surfaceMesh.H"

#include "fvCFD.H"
#include "zeroGradientFvPatchFields.H"
#include "vector.H"
#include "List.H"

#include "processorFvPatch.H"
#include "leastSquaresBase.H"

namespace Foam
{

namespace fvsc
{

/*---------------------------------------------------------------------------*\
                    Class leastSquares Declaration
\*---------------------------------------------------------------------------*/

class leastSquares
:
    public fvscStencil, public leastSquaresBase
{

public:

        TypeName ("leastSquares");

// Constructors

        //- Construct from IOobject. Optional flag for if IOobject is the
        //  top level regIOobject.
        leastSquares(const IOobject&);
        
        //- Destructor
        ~leastSquares();

        tmp<surfaceVectorField> Grad(const volScalarField& iF);

        tmp<surfaceTensorField> Grad(const volVectorField& iVF);

        tmp<surfaceScalarField> Div(const volVectorField& iVF);

        tmp<surfaceVectorField> Div(const volTensorField& iTF);
};

} //fvsc

} //Foam

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

#endif