linearViscousStress.C

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#include "linearViscousStress.H"
#include "fvcGrad.H"
#include "fvcDiv.H"
#include "fvmLaplacian.H"
#include "fvcSnGrad.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::surfaceVectorField>
Foam::linearViscousStress<BasicMomentumTransportModel>::devTau() const
{
    const surfaceScalarField alphaRhoNuEff
    (
        fvc::interpolate(this->alpha_*this->rho_*this->nuEff())
    );
 
    return surfaceVectorField::New
    (
        this->groupName("devTau"),
       -alphaRhoNuEff
       *(
           fvc::dotInterpolate(this->mesh().nf(), dev2(T(fvc::grad(this->U_))))
         + fvc::snGrad(this->U_)
        )
    );
}
 
 
template<class BasicMomentumTransportModel>
template<class RhoFieldType>
Foam::tmp<Foam::fvVectorMatrix>
Foam::linearViscousStress<BasicMomentumTransportModel>::DivDevTau
(
    const RhoFieldType& rho,
    volVectorField& U
) const
{
    const surfaceScalarField alphaRhoNuEff
    (
        fvc::interpolate(this->alpha_*rho*this->nuEff())
    );
 
    const fvVectorMatrix divDevTauCorr
    (
        this->divDevTauCorr
        (
           -alphaRhoNuEff
           *fvc::dotInterpolate(this->mesh().Sf(), dev2(T(fvc::grad(U)))),
            U
        )
    );
 
    return divDevTauCorr - fvm::laplacian(alphaRhoNuEff, U);
}
 
 
template<class BasicMomentumTransportModel>
Foam::tmp<Foam::fvVectorMatrix>
Foam::linearViscousStress<BasicMomentumTransportModel>::divDevTau
(
    volVectorField& U
) const
{
    return DivDevTau(this->rho_, U);
}
 
 
template<class BasicMomentumTransportModel>
Foam::tmp<Foam::fvVectorMatrix>
Foam::linearViscousStress<BasicMomentumTransportModel>::divDevTau
(
    const volScalarField& rho,
    volVectorField& U
) const
{
    return DivDevTau(rho, U);
}
 
 
template<class BasicMomentumTransportModel>
void Foam::linearViscousStress<BasicMomentumTransportModel>::correct()
{
    BasicMomentumTransportModel::correct();
}
 
 
// ************************************************************************* //