linearViscousStress.C

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#include "linearViscousStress.H"
#include "fvc.H"
#include "fvm.H"

// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //

template<class BasicMomentumTransportModel>
Foam::linearViscousStress<BasicMomentumTransportModel>::linearViscousStress
(
    const word& modelName,
    const alphaField& alpha,
    const rhoField& rho,
    const volVectorField& U,
    const surfaceScalarField& alphaRhoPhi,
    const surfaceScalarField& phi,
    const viscosity& viscosity
)
:
    BasicMomentumTransportModel
    (
        modelName,
        alpha,
        rho,
        U,
        alphaRhoPhi,
        phi,
        viscosity
    )
{}


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

template<class BasicMomentumTransportModel>
bool Foam::linearViscousStress<BasicMomentumTransportModel>::read()
{
    return BasicMomentumTransportModel::read();
}


template<class BasicMomentumTransportModel>
Foam::tmp<Foam::volSymmTensorField>
Foam::linearViscousStress<BasicMomentumTransportModel>::devTau() const
{
    return volSymmTensorField::New
    (
        IOobject::groupName("devTau", this->alphaRhoPhi_.group()),
        (-(this->alpha_*this->rho_*this->nuEff()))
       *dev(twoSymm(fvc::grad(this->U_)))
    );
}


template<class BasicMomentumTransportModel>
Foam::tmp<Foam::fvVectorMatrix>
Foam::linearViscousStress<BasicMomentumTransportModel>::divDevTau
(
    volVectorField& U
) const
{
    return
    (
      - fvc::div((this->alpha_*this->rho_*this->nuEff())*dev2(T(fvc::grad(U))))
      - fvm::laplacian(this->alpha_*this->rho_*this->nuEff(), U)
    );
}


template<class BasicMomentumTransportModel>
Foam::tmp<Foam::fvVectorMatrix>
Foam::linearViscousStress<BasicMomentumTransportModel>::divDevTau
(
    const volScalarField& rho,
    volVectorField& U
) const
{
    return
    (
      - fvc::div((this->alpha_*rho*this->nuEff())*dev2(T(fvc::grad(U))))
      - fvm::laplacian(this->alpha_*rho*this->nuEff(), U)
    );
}


template<class BasicMomentumTransportModel>
void Foam::linearViscousStress<BasicMomentumTransportModel>::correct()
{
    BasicMomentumTransportModel::correct();
}


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