localEulerDdtScheme.H

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/*---------------------------------------------------------------------------*\
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-------------------------------------------------------------------------------
    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
    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::localEulerDdtScheme
 
Group
    grpFvDdtSchemes
 
Description
    Local time-step first-order Euler implicit/explicit ddt.
 
    The reciprocal of the local time-step field is looked-up from the database.
 
    This scheme should only be used for steady-state computations using
    transient codes where local time-stepping is preferably to under-relaxation
    for transport consistency reasons.
 
See also
    Foam::fv::CoEulerDdtScheme
 
SourceFiles
    localEulerDdt.C
    localEulerDdtScheme.C
    localEulerDdtSchemes.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef localEulerDdtScheme_H
#define localEulerDdtScheme_H
 
#include "ddtScheme.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace fv
{
 
/*---------------------------------------------------------------------------*\
                       Class localEulerDdt Declaration
\*---------------------------------------------------------------------------*/
 
class localEulerDdt
{
public:
 
    //- Name of the reciprocal local time-step field
    static word rDeltaTName;
 
    //- Name of the reciprocal local face time-step field
    static word rDeltaTfName;
 
    //- Name of the reciprocal local sub-cycling time-step field
    static word rSubDeltaTName;
 
 
    // Constructors
 
        localEulerDdt()
        {}
 
 
    // Member Functions
 
        //- Return true if LTS is enabled
        static bool enabled(const fvMesh& mesh);
 
        //- Return the reciprocal of the local time-step
        //  looked-up from the objectRegistry
        static const volScalarField& localRDeltaT(const fvMesh& mesh);
 
        //- Return the reciprocal of the local face time-step
        //  looked-up from the objectRegistry
        static const surfaceScalarField& localRDeltaTf(const fvMesh& mesh);
 
        //- Calculate and return the reciprocal of the local sub-cycling
        //  time-step
        static tmp<volScalarField> localRSubDeltaT
        (
            const fvMesh& mesh,
            const label nAlphaSubCycles
        );
};
 
 
/*---------------------------------------------------------------------------*\
                       Class localEulerDdtScheme Declaration
\*---------------------------------------------------------------------------*/
 
template<class Type>
class localEulerDdtScheme
:
    public localEulerDdt,
    public fv::ddtScheme<Type>
{
    // Private Member Functions
 
        //- No copy construct
        localEulerDdtScheme(const localEulerDdtScheme&) = delete;
 
        //- No copy assignment
        void operator=(const localEulerDdtScheme&) = delete;
 
        //- Return the reciprocal of the local time-step
        const volScalarField& localRDeltaT() const;
 
        //- Return the reciprocal of the local face time-step
        const surfaceScalarField& localRDeltaTf() const;
 
 
public:
 
    //- Runtime type information
    TypeName("localEuler");
 
 
    // Constructors
 
        //- Construct from mesh
        localEulerDdtScheme(const fvMesh& mesh)
        :
            ddtScheme<Type>(mesh)
        {}
 
        //- Construct from mesh and Istream
        localEulerDdtScheme(const fvMesh& mesh, Istream& is)
        :
            ddtScheme<Type>(mesh, is)
        {}
 
 
    // Member Functions
 
        //- Return mesh reference
        const fvMesh& mesh() const
        {
            return fv::ddtScheme<Type>::mesh();
        }
 
        tmp<GeometricField<Type, fvPatchField, volMesh>> fvcDdt
        (
            const dimensioned<Type>&
        );
 
        tmp<GeometricField<Type, fvPatchField, volMesh>> fvcDdt
        (
            const GeometricField<Type, fvPatchField, volMesh>&
        );
 
        tmp<GeometricField<Type, fvPatchField, volMesh>> fvcDdt
        (
            const dimensionedScalar&,
            const GeometricField<Type, fvPatchField, volMesh>&
        );
 
        tmp<GeometricField<Type, fvPatchField, volMesh>> fvcDdt
        (
            const volScalarField&,
            const GeometricField<Type, fvPatchField, volMesh>&
        );
 
        tmp<GeometricField<Type, fvPatchField, volMesh>> fvcDdt
        (
            const volScalarField& alpha,
            const volScalarField& rho,
            const GeometricField<Type, fvPatchField, volMesh>& psi
        );
 
        tmp<GeometricField<Type, fvsPatchField, surfaceMesh>> fvcDdt
        (
            const GeometricField<Type, fvsPatchField, surfaceMesh>&
        );
 
        tmp<fvMatrix<Type>> fvmDdt
        (
            const GeometricField<Type, fvPatchField, volMesh>&
        );
 
        tmp<fvMatrix<Type>> fvmDdt
        (
            const dimensionedScalar&,
            const GeometricField<Type, fvPatchField, volMesh>&
        );
 
        tmp<fvMatrix<Type>> fvmDdt
        (
            const volScalarField&,
            const GeometricField<Type, fvPatchField, volMesh>&
        );
 
        tmp<fvMatrix<Type>> fvmDdt
        (
            const volScalarField& alpha,
            const volScalarField& rho,
            const GeometricField<Type, fvPatchField, volMesh>& psi
        );
 
        typedef typename ddtScheme<Type>::fluxFieldType fluxFieldType;
 
        tmp<fluxFieldType> fvcDdtUfCorr
        (
            const GeometricField<Type, fvPatchField, volMesh>& U,
            const GeometricField<Type, fvsPatchField, surfaceMesh>& Uf
        );
 
        tmp<fluxFieldType> fvcDdtPhiCorr
        (
            const GeometricField<Type, fvPatchField, volMesh>& U,
            const fluxFieldType& phi
        );
 
        tmp<fluxFieldType> fvcDdtUfCorr
        (
            const volScalarField& rho,
            const GeometricField<Type, fvPatchField, volMesh>& U,
            const GeometricField<Type, fvsPatchField, surfaceMesh>& Uf
        );
 
        tmp<fluxFieldType> fvcDdtPhiCorr
        (
            const volScalarField& rho,
            const GeometricField<Type, fvPatchField, volMesh>& U,
            const fluxFieldType& phi
        );
 
        tmp<surfaceScalarField> meshPhi
        (
            const GeometricField<Type, fvPatchField, volMesh>&
        );
};
 
 
template<>
tmp<surfaceScalarField> localEulerDdtScheme<scalar>::fvcDdtUfCorr
(
    const GeometricField<scalar, fvPatchField, volMesh>& U,
    const GeometricField<scalar, fvsPatchField, surfaceMesh>& Uf
);
 
template<>
tmp<surfaceScalarField> localEulerDdtScheme<scalar>::fvcDdtPhiCorr
(
    const volScalarField& U,
    const surfaceScalarField& phi
);
 
template<>
tmp<surfaceScalarField> localEulerDdtScheme<scalar>::fvcDdtUfCorr
(
    const volScalarField& rho,
    const volScalarField& U,
    const surfaceScalarField& Uf
);
 
template<>
tmp<surfaceScalarField> localEulerDdtScheme<scalar>::fvcDdtPhiCorr
(
    const volScalarField& rho,
    const volScalarField& U,
    const surfaceScalarField& phi
);
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace fv
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
    #include "localEulerDdtScheme.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //