fvcDDt.C

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#include "fvcDDt.H"
#include "fvcDiv.H"
#include "fvMesh.H"

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

namespace Foam
{

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

namespace fvc
{

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

template<class Type>
tmp<GeometricField<Type, fvPatchField, volMesh>>
DDt
(
    const surfaceScalarField& phi,
    const GeometricField<Type, fvPatchField, volMesh>& psi
)
{
    tmp<GeometricField<Type, fvPatchField, volMesh>> ddtDivPhiPsi
        = fvc::ddt(psi) + fvc::div(phi, psi);

    if (phi.mesh().moving())
    {
        return ddtDivPhiPsi - fvc::div(phi + phi.mesh().phi())*psi;
    }
    else
    {
        return ddtDivPhiPsi - fvc::div(phi)*psi;
    }
}


template<class Type>
tmp<GeometricField<Type, fvPatchField, volMesh>>
DDt
(
    const tmp<surfaceScalarField>& tphi,
    const GeometricField<Type, fvPatchField, volMesh>& psi
)
{
    tmp<GeometricField<Type, fvPatchField, volMesh>> DDtPsi
    (
        fvc::DDt(tphi(), psi)
    );
    tphi.clear();
    return DDtPsi;
}


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

} // End namespace fvc

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

} // End namespace Foam

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