accelerationSourceTemplates.C

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// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //

template<class AlphaRhoFieldType>
void Foam::fv::accelerationSource::add
(
    const AlphaRhoFieldType& alphaRho,
    fvMatrix<vector>& eqn,
    const word& fieldName
) const
{
    const DimensionedField<scalar, volMesh>& V = mesh().V();

    const scalar t = mesh().time().value();
    const scalar dt = mesh().time().deltaTValue();
    const vector dU =
        velocity_->value(mesh().time().timeToUserTime(t))
      - velocity_->value(mesh().time().timeToUserTime(t - dt));
    const vector a = dU/mesh().time().deltaTValue();

    const labelList& cells = set_.cells();

    forAll(cells, i)
    {
        const label celli = cells[i];
        eqn.source()[celli] -= V[celli]*alphaRho[celli]*a;
    }
}


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