plastic.C

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#include "plastic.H"
#include "incompressibleDriftFluxMixture.H"
#include "addToRunTimeSelectionTable.H"
 
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
namespace Foam
{
namespace mixtureViscosityModels
{
    defineTypeNameAndDebug(plastic, 0);
 
    addToRunTimeSelectionTable
    (
        mixtureViscosityModel,
        plastic,
        dictionary
    );
}
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::mixtureViscosityModels::plastic::plastic
(
    const incompressibleDriftFluxMixture& mixture
)
:
    mixtureViscosityModel(mixture),
    plasticCoeffs_(optionalSubDict(typeName + "Coeffs")),
    plasticViscosityCoeff_
    (
        "coeff",
        dimDynamicViscosity,
        plasticCoeffs_.lookup("coeff")
    ),
    plasticViscosityExponent_
    (
        "exponent",
        dimless,
        plasticCoeffs_.lookup("exponent")
    ),
    muMax_("muMax", dimDynamicViscosity, plasticCoeffs_.lookup("muMax"))
{}
 
 
// * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * * //
 
Foam::tmp<Foam::volScalarField>
Foam::mixtureViscosityModels::plastic::mu
(
    const volScalarField& muc,
    const volVectorField& U
) const
{
    return min
    (
        muc
      + plasticViscosityCoeff_
       *(
            pow
            (
                scalar(10),
                plasticViscosityExponent_*mixture_.alphad()
            ) - scalar(1)
        ),
        muMax_
    );
}
 
 
bool Foam::mixtureViscosityModels::plastic::read()
{
    if (mixtureViscosityModel::read())
    {
        plasticCoeffs_ = optionalSubDict(typeName + "Coeffs");
 
        plasticCoeffs_.lookup("k") >> plasticViscosityCoeff_;
        plasticCoeffs_.lookup("n") >> plasticViscosityExponent_;
        plasticCoeffs_.lookup("muMax") >> muMax_;
 
        return true;
    }
    else
    {
        return false;
    }
}
 
 
// ************************************************************************* //