fvcSurfaceIntegrate.C

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    \\  /    A nd           | Copyright (C) 2011-2026 OpenFOAM Foundation
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-------------------------------------------------------------------------------
License
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#include "fvcSurfaceIntegrate.H"
#include "fvMesh.H"
#include "extrapolatedCalculatedFvPatchFields.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace fvc
{
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
template<class Type>
void surfaceIntegrate
(
    Field<Type>& ivf,
    const SurfaceField<Type>& ssf
)
{
    const fvMesh& mesh = ssf.mesh()();
 
    const labelUList& owner = mesh.owner();
    const labelUList& neighbour = mesh.neighbour();
 
    const Field<Type>& issf = ssf;
 
    forAll(owner, facei)
    {
        ivf[owner[facei]] += issf[facei];
        ivf[neighbour[facei]] -= issf[facei];
    }
 
    forAll(mesh.boundary(), patchi)
    {
        const labelUList& pFaceCells =
            mesh.boundary()[patchi].faceCells();
 
        const fvsPatchField<Type>& pssf = ssf.boundaryField()[patchi];
 
        forAll(mesh.boundary()[patchi], facei)
        {
            ivf[pFaceCells[facei]] += pssf[facei];
        }
    }
 
    ivf /= mesh.Vsc();
}
 
 
template<class Type>
tmp<VolInternalField<Type>>
surfaceIntegrate
(
    const SurfaceField<Type>& ssf
)
{
    tmp<VolInternalField<Type>> tvf
    (
        VolInternalField<Type>::New
        (
            "surfaceIntegrate("+ssf.name()+')',
            ssf.mesh()(),
            dimensioned<Type>
            (
                "0",
                ssf.dimensions()/dimVolume,
                Zero
            )
        )
    );
    VolInternalField<Type>& vf = tvf.ref();
 
    surfaceIntegrate(vf.primitiveFieldRef(), ssf);
 
    return tvf;
}
 
 
template<class Type>
tmp<VolInternalField<Type>>
surfaceIntegrate
(
    const tmp<SurfaceField<Type>>& tssf
)
{
    tmp<VolInternalField<Type>> tvf
    (
        fvc::surfaceIntegrate(tssf())
    );
    tssf.clear();
    return tvf;
}
 
 
template<class Type>
tmp<VolField<Type>>
surfaceIntegrateExtrapolate
(
    const SurfaceField<Type>& ssf
)
{
    tmp<VolField<Type>> tvf
    (
        VolField<Type>::New
        (
            "surfaceIntegrate("+ssf.name()+')',
            ssf.mesh()(),
            dimensioned<Type>
            (
                "0",
                ssf.dimensions()/dimVolume,
                Zero
            ),
            extrapolatedCalculatedFvPatchField<Type>::typeName
        )
    );
    VolField<Type>& vf = tvf.ref();
 
    surfaceIntegrate(vf.primitiveFieldRef(), ssf);
    vf.correctBoundaryConditions();
 
    return tvf;
}
 
 
template<class Type>
tmp<VolField<Type>>
surfaceIntegrateExtrapolate
(
    const tmp<SurfaceField<Type>>& tssf
)
{
    tmp<VolField<Type>> tvf
    (
        fvc::surfaceIntegrateExtrapolate(tssf())
    );
    tssf.clear();
    return tvf;
}
 
 
template<class Type>
tmp<VolInternalField<Type>> surfaceSum(const SurfaceField<Type>& ssf)
{
    const fvMesh& mesh = ssf.mesh()();
 
    tmp<VolInternalField<Type>> tvf
    (
        VolInternalField<Type>::New
        (
            "surfaceSum("+ssf.name()+')',
            mesh,
            dimensioned<Type>("0", ssf.dimensions(), Zero)
        )
    );
    VolInternalField<Type>& vf = tvf.ref();
 
    const labelUList& owner = mesh.owner();
    const labelUList& neighbour = mesh.neighbour();
 
    forAll(owner, facei)
    {
        vf[owner[facei]] += ssf[facei];
        vf[neighbour[facei]] += ssf[facei];
    }
 
    forAll(mesh.boundary(), patchi)
    {
        const labelUList& pFaceCells =
            mesh.boundary()[patchi].faceCells();
 
        const fvsPatchField<Type>& pssf = ssf.boundaryField()[patchi];
 
        forAll(mesh.boundary()[patchi], facei)
        {
            vf[pFaceCells[facei]] += pssf[facei];
        }
    }
 
    return tvf;
}
 
 
template<class Type>
tmp<VolInternalField<Type>> surfaceSum
(
    const tmp<SurfaceField<Type>>& tssf
)
{
    tmp<VolInternalField<Type>> tvf = surfaceSum(tssf());
    tssf.clear();
    return tvf;
}
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace fvc
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// ************************************************************************* //