GenEddyVisc.C

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#include <incompressibleLESModels/GenEddyVisc.H>

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

namespace Foam
{
namespace incompressible
{
namespace LESModels
{

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

GenEddyVisc::GenEddyVisc
(
    const volVectorField& U,
    const surfaceScalarField& phi,
    transportModel& transport
)
:
    LESModel(word("GenEddyVisc"), U, phi, transport),

    ce_
    (
        dimensioned<scalar>::lookupOrAddToDict
        (
            "ce",
            coeffDict_,
            1.048
        )
    ),

    nuSgs_
    (
        IOobject
        (
            "nuSgs",
            runTime_.timeName(),
            mesh_,
            IOobject::MUST_READ,
            IOobject::AUTO_WRITE
        ),
        mesh_
    )
{
//    printCoeffs();
}


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

tmp<volSymmTensorField> GenEddyVisc::B() const
{
    return ((2.0/3.0)*I)*k() - nuSgs_*twoSymm(fvc::grad(U()));
}


tmp<volSymmTensorField> GenEddyVisc::devBeff() const
{
    return -nuEff()*dev(twoSymm(fvc::grad(U())));
}


tmp<fvVectorMatrix> GenEddyVisc::divDevBeff(volVectorField& U) const
{
    return
    (
      - fvm::laplacian(nuEff(), U) - fvc::div(nuEff()*dev(fvc::grad(U)().T()))
    );
}


void GenEddyVisc::correct(const tmp<volTensorField>& gradU)
{
    LESModel::correct(gradU);
}


bool GenEddyVisc::read()
{
    if (LESModel::read())
    {
        ce_.readIfPresent(coeffDict());

        return true;
    }
    else
    {
        return false;
    }
}


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

} // End namespace LESModels
} // End namespace incompressible
} // End namespace Foam

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