gradScheme.H

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | www.openfoam.com
     \\/     M anipulation  |
-------------------------------------------------------------------------------
    Copyright (C) 2011-2016 OpenFOAM Foundation
    Copyright (C) 2019-2021 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::fv::gradScheme
 
Description
    Abstract base class for gradient schemes.
 
SourceFiles
    gradScheme.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef gradScheme_H
#define gradScheme_H
 
#include "tmp.H"
#include "volFieldsFwd.H"
#include "surfaceFieldsFwd.H"
#include "typeInfo.H"
#include "runTimeSelectionTables.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
class fvMesh;
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace fv
{
 
/*---------------------------------------------------------------------------*\
                           Class gradScheme Declaration
\*---------------------------------------------------------------------------*/
 
template<class Type>
class gradScheme
:
    public refCount
{
    // Private Data
 
        //- Reference to mesh
        const fvMesh& mesh_;
 
 
    // Private Member Functions
 
        //- No copy construct
        gradScheme(const gradScheme&) = delete;
 
        //- No copy assignment
        void operator=(const gradScheme&) = delete;
 
 
public:
 
    //- Runtime type information
    virtual const word& type() const = 0;
 
 
    // Declare run-time constructor selection tables
 
        declareRunTimeSelectionTable
        (
            tmp,
            gradScheme,
            Istream,
            (const fvMesh& mesh, Istream& schemeData),
            (mesh, schemeData)
        );
 
 
    // Constructors
 
        //- Construct from mesh
        gradScheme(const fvMesh& mesh)
        :
            mesh_(mesh)
        {}
 
 
    // Selectors
 
        //- Return a pointer to a new gradScheme created on freestore
        static tmp<gradScheme<Type>> New
        (
            const fvMesh& mesh,
            Istream& schemeData
        );
 
 
    //- Destructor
    virtual ~gradScheme() = default;
 
 
    // Member Functions
 
        //- Return const reference to mesh
        const fvMesh& mesh() const
        {
            return mesh_;
        }
 
        //- Calculate and return the grad of the given field.
        //  Used by grad either to recalculate the cached gradient when it is
        //  out of date with respect to the field or when it is not cached.
        virtual tmp
        <
            GeometricField
            <typename outerProduct<vector, Type>::type, fvPatchField, volMesh>
        > calcGrad
        (
            const GeometricField<Type, fvPatchField, volMesh>&,
            const word& name
        ) const = 0;
 
        //- Calculate the grad of the given field into supplied field
        virtual void calcGrad
        (
            GeometricField
            <typename outerProduct<vector, Type>::type, fvPatchField, volMesh>& res,
            const GeometricField<Type, fvPatchField, volMesh>&
        ) const;
 
        //- Calculate and return the grad of the given field
        //- which may have been cached
        tmp
        <
            GeometricField
            <typename outerProduct<vector, Type>::type, fvPatchField, volMesh>
        > grad
        (
            const GeometricField<Type, fvPatchField, volMesh>&,
            const word& name
        ) const;
 
        //- Calculate and return the grad of the given field
        //- with the default name
        //- which may have been cached
        tmp
        <
            GeometricField
            <typename outerProduct<vector, Type>::type, fvPatchField, volMesh>
        > grad
        (
            const GeometricField<Type, fvPatchField, volMesh>&
        ) const;
 
        //- Calculate and return the grad of the given field
        //- with the default name
        //- which may have been cached
        tmp
        <
            GeometricField
            <typename outerProduct<vector, Type>::type, fvPatchField, volMesh>
        > grad
        (
            const tmp<GeometricField<Type, fvPatchField, volMesh>>&
        ) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace fv
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
// Add the patch constructor functions to the hash tables
 
#define makeFvGradTypeScheme(SS, Type)                                         \
    defineNamedTemplateTypeNameAndDebug(Foam::fv::SS<Foam::Type>, 0);          \
                                                                               \
    namespace Foam                                                             \
    {                                                                          \
        namespace fv                                                           \
        {                                                                      \
            gradScheme<Type>::addIstreamConstructorToTable<SS<Type>>           \
                add##SS##Type##IstreamConstructorToTable_;                     \
        }                                                                      \
    }
 
 
#define makeFvGradScheme(SS)                                                   \
                                                                               \
makeFvGradTypeScheme(SS, scalar)                                               \
makeFvGradTypeScheme(SS, vector)
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
    #include "gradScheme.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //