C++ (Cpp) porosityEqn Examples

Example #1

File: explicitPorositySource.C Project: iYohey/OpenFOAM-dev

void Foam::fv::explicitPorositySource::addSup
(
    fvMatrix<vector>& eqn,
    const label fieldi
)
{
    fvMatrix<vector> porosityEqn(eqn.psi(), eqn.dimensions());
    porosityPtr_->addResistance(porosityEqn);
    eqn -= porosityEqn;
}

Example #2

File: explicitPorositySource.C Project: iYohey/OpenFOAM-dev

void Foam::fv::explicitPorositySource::addSup
(
    const volScalarField& alpha,
    const volScalarField& rho,
    fvMatrix<vector>& eqn,
    const label fieldi
)
{
    fvMatrix<vector> porosityEqn(eqn.psi(), eqn.dimensions());
    porosityPtr_->addResistance(porosityEqn);
    eqn -= alpha*porosityEqn;
}

Example #3

File: interRegionExplicitPorositySource.C Project: BijanZarif/OpenFOAM-2.4.0-MNF

void Foam::fv::interRegionExplicitPorositySource::addSup
(
    fvMatrix<vector>& eqn,
    const label fieldI
)
{
    initialise();

    const fvMesh& nbrMesh = mesh_.time().lookupObject<fvMesh>(nbrRegionName_);

    const volVectorField& U = eqn.psi();

    volVectorField UNbr
    (
        IOobject
        (
            name_ + ":UNbr",
            nbrMesh.time().timeName(),
            nbrMesh,
            IOobject::NO_READ,
            IOobject::NO_WRITE
        ),
        nbrMesh,
        dimensionedVector("zero", U.dimensions(), vector::zero)
    );

    // map local velocity onto neighbour region
    meshInterp().mapSrcToTgt
    (
        U.internalField(),
        plusEqOp<vector>(),
        UNbr.internalField()
    );

    fvMatrix<vector> nbrEqn(UNbr, eqn.dimensions());

    porosityPtr_->addResistance(nbrEqn);

    // convert source from neighbour to local region
    fvMatrix<vector> porosityEqn(U, eqn.dimensions());
    scalarField& Udiag = porosityEqn.diag();
    vectorField& Usource = porosityEqn.source();

    Udiag.setSize(eqn.diag().size(), 0.0);
    Usource.setSize(eqn.source().size(), vector::zero);

    meshInterp().mapTgtToSrc(nbrEqn.diag(), plusEqOp<scalar>(), Udiag);
    meshInterp().mapTgtToSrc(nbrEqn.source(), plusEqOp<vector>(), Usource);

    eqn -= porosityEqn;
}

Example #4

File: explicitPorositySource.C Project: Al-th/OpenFOAM-2.2.x

void Foam::fv::explicitPorositySource::addSup
(
    fvMatrix<vector>& eqn,
    const label fieldI
)
{
    fvMatrix<vector> porosityEqn(eqn.psi(), eqn.dimensions());

    if (eqn.dimensions() == dimForce)
    {
        const volScalarField& rho =
            mesh_.lookupObject<volScalarField>(rhoName_);
        const volScalarField& mu = mesh_.lookupObject<volScalarField>(muName_);

        porosityPtr_->addResistance(porosityEqn, rho, mu);
    }
    else
    {
        porosityPtr_->addResistance(porosityEqn);
    }

    eqn -= porosityEqn;
}