Smagorinsky.C

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
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    \\  /    A nd           | Copyright (C) 1991-2010 OpenCFD Ltd.
     \\/     M anipulation  |
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#include "Smagorinsky.H"
#include <OpenFOAM/addToRunTimeSelectionTable.H>

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

namespace Foam
{
namespace incompressible
{
namespace LESModels
{

// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //

defineTypeNameAndDebug(Smagorinsky, 0);
addToRunTimeSelectionTable(LESModel, Smagorinsky, dictionary);

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

void Smagorinsky::updateSubGridScaleFields(const volTensorField& gradU)
{
    nuSgs_ = ck_*delta()*sqrt(k(gradU));
    nuSgs_.correctBoundaryConditions();
}


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

Smagorinsky::Smagorinsky
(
    const volVectorField& U,
    const surfaceScalarField& phi,
    transportModel& transport
)
:
    LESModel(typeName, U, phi, transport),
    GenEddyVisc(U, phi, transport),

    ck_
    (
        dimensioned<scalar>::lookupOrAddToDict
        (
            "ck",
            coeffDict_,
            0.094
        )
    )
{
    updateSubGridScaleFields(fvc::grad(U));

    printCoeffs();
}


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

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


bool Smagorinsky::read()
{
    if (GenEddyVisc::read())
    {
        ck_.readIfPresent(coeffDict());

        return true;
    }
    else
    {
        return false;
    }
}


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

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

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