levelSet.H

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License
    This file is part of OpenFOAM.

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Description:
    Functions to create an averaged field from a discontinuous field defined by
    a level-set.

SourceFiles:
    levelSet.C
    levelSetTemplates.C

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

#ifndef levelSet_H
#define levelSet_H

#include "volFields.H"
#include "pointFields.H"

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

namespace Foam
{

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

//- Calculate the average value of two fields, one on each side of a level set
//  The level set and the fields are given both on the points and cell-centres.
template<class Type>
tmp<Field<Type>> levelSetAverage
(
    const fvMesh& mesh,
    const scalarField& levelC,
    const scalarField& levelP,
    const Field<Type>& positiveC,
    const Field<Type>& positiveP,
    const Field<Type>& negativeC,
    const Field<Type>& negativeP
);

//- As the above overload, but on the faces of a patch
template<class Type>
tmp<Field<Type>> levelSetAverage
(
    const fvPatch& patch,
    const scalarField& levelF,
    const scalarField& levelP,
    const Field<Type>& positiveF,
    const Field<Type>& positiveP,
    const Field<Type>& negativeF,
    const Field<Type>& negativeP
);

//- As the above overload, but both in cells and on patch faces
template<class Type>
tmp<GeometricField<Type, fvPatchField, volMesh>> levelSetAverage
(
    const volScalarField& levelC,
    const pointScalarField& levelP,
    const GeometricField<Type, fvPatchField, volMesh>& positiveC,
    const GeometricField<Type, pointPatchField, pointMesh>& positiveP,
    const GeometricField<Type, fvPatchField, volMesh>& negativeC,
    const GeometricField<Type, pointPatchField, pointMesh>& negativeP
);

//- Calculate the volume-fraction that a level set occupies. This gives the
//  same result as levelSetAverage if the fields passed to the latter are
//  uniformly 0 and 1. The above flag flips the direction.
tmp<scalarField> levelSetFraction
(
    const fvMesh& mesh,
    const scalarField& levelC,
    const scalarField& levelP,
    const bool above
);

//- As the above overload, but on the faces of a patch
tmp<scalarField> levelSetFraction
(
    const fvPatch& patch,
    const scalarField& levelF,
    const scalarField& levelP,
    const bool above
);

//- As the above overload, but both in cells and on patch faces
tmp<volScalarField> levelSetFraction
(
    const volScalarField& levelC,
    const pointScalarField& levelP,
    const bool above
);

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

} // End namespace Foam

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

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

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

#endif

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