generalisedNewtonian.C

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#include "generalisedNewtonian.H"
#include "volFields.H"
#include "surfaceFields.H"
#include "fvcGrad.H"
#include "fvcDiv.H"
#include "fvmLaplacian.H"

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

namespace Foam
{
namespace laminarModels
{

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

template<class BasicMomentumTransportModel>
generalisedNewtonian<BasicMomentumTransportModel>::generalisedNewtonian
(
    const alphaField& alpha,
    const rhoField& rho,
    const volVectorField& U,
    const surfaceScalarField& alphaRhoPhi,
    const surfaceScalarField& phi,
    const transportModel& transport
)
:
    linearViscousStress<laminarModel<BasicMomentumTransportModel>>
    (
        typeName,
        alpha,
        rho,
        U,
        alphaRhoPhi,
        phi,
        transport
    ),

    viscosityModel_
    (
        generalisedNewtonianViscosityModel::New
        (
            this->coeffDict_
        )
    ),

    nu_
    (
        IOobject
        (
            IOobject::groupName
            (
                IOobject::modelName("nu", typeName),
                alphaRhoPhi.group()
            ),
            this->runTime_.timeName(),
            this->mesh_,
            IOobject::NO_READ,
            IOobject::AUTO_WRITE
        ),
        viscosityModel_->nu(this->nu(), strainRate())
    )
{}


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

template<class BasicMomentumTransportModel>
tmp<volScalarField>
generalisedNewtonian<BasicMomentumTransportModel>::strainRate() const
{
    return sqrt(2.0)*mag(symm(fvc::grad(this->U())));
}


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

template<class BasicMomentumTransportModel>
bool generalisedNewtonian<BasicMomentumTransportModel>::read()
{
    viscosityModel_->read(this->coeffDict_);

    return true;
}


template<class BasicMomentumTransportModel>
tmp<volScalarField>
generalisedNewtonian<BasicMomentumTransportModel>::nuEff() const
{
    return volScalarField::New
    (
        IOobject::groupName("nuEff", this->alphaRhoPhi_.group()),
        nu_
    );
}


template<class BasicMomentumTransportModel>
tmp<scalarField>
generalisedNewtonian<BasicMomentumTransportModel>::nuEff
(
    const label patchi
) const
{
    return nu_.boundaryField()[patchi];
}


template<class BasicMomentumTransportModel>
void generalisedNewtonian<BasicMomentumTransportModel>::correct()
{
    nu_ = viscosityModel_->nu(this->nu(), strainRate());
    laminarModel<BasicMomentumTransportModel>::correct();
}


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

} // End namespace laminarModels
} // End namespace Foam

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