sigma.C

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/*---------------------------------------------------------------------------*\
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  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
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    Copyright (C) 2022 Upstream CFD GmbH
    Copyright (C) 2022-2023 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.

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#include "sigma.H"
#include "DESModel.H"
#include "fvOptions.H"

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

namespace Foam
{
namespace LESModels
{

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

template<class BasicTurbulenceModel>
void sigma<BasicTurbulenceModel>::correctNut()
{
    this->nut_ =
        sqr(this->delta())
       *DESModel<BasicTurbulenceModel>::Ssigma(fvc::grad(this->U_), Csigma_);
    this->nut_.correctBoundaryConditions();
    fv::options::New(this->mesh_).correct(this->nut_);

    BasicTurbulenceModel::correctNut();
}


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

template<class BasicTurbulenceModel> sigma<BasicTurbulenceModel>::sigma
(
    const alphaField& alpha,
    const rhoField& rho,
    const volVectorField& U,
    const surfaceScalarField& alphaRhoPhi,
    const surfaceScalarField& phi,
    const transportModel& transport,
    const word& propertiesName,
    const word& type
)
:
    LESeddyViscosity<BasicTurbulenceModel>
    (
        type,
        alpha,
        rho,
        U,
        alphaRhoPhi,
        phi,
        transport,
        propertiesName
    ),

    Ck_
    (
        dimensioned<scalar>::getOrAddToDict
        (
            "Ck",
            this->coeffDict_,
            0.094
        )
    ),

    Cw_
    (
        dimensioned<scalar>::getOrAddToDict
        (
            "Cw",
            this->coeffDict_,
            0.325
        )
    ),

    Csigma_
    (
        dimensioned<scalar>::getOrAddToDict
        (
            "Csigma",
            this->coeffDict_,
            1.68
        )
    )
{
    if (type == typeName)
    {
        this->printCoeffs(type);
    }
}


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

template<class BasicTurbulenceModel>
bool sigma<BasicTurbulenceModel>::read()
{
    if (LESeddyViscosity<BasicTurbulenceModel>::read())
    {
        Ck_.readIfPresent(this->coeffDict());
        Cw_.readIfPresent(this->coeffDict());
        Csigma_.readIfPresent(this->coeffDict());

        return true;
    }

    return false;
}


template<class BasicTurbulenceModel>
tmp<volScalarField> sigma<BasicTurbulenceModel>::k() const
{
    return tmp<volScalarField>::New
    (
        IOobject::groupName("k", this->U_.group()),
        (2.0*Ck_/this->Ce_)
       *sqr(this->delta())
       *magSqr(devSymm(fvc::grad(this->U_)))
    );
}


template<class BasicTurbulenceModel>
tmp<volScalarField> sigma<BasicTurbulenceModel>::epsilon() const
{
    return tmp<volScalarField>::New
    (
        IOobject::groupName("epsilon", this->U_.group()),
        this->Ce_*k()*sqrt(k())/this->delta()
    );
}


template<class BasicTurbulenceModel>
void sigma<BasicTurbulenceModel>::correct()
{
    LESeddyViscosity<BasicTurbulenceModel>::correct();
    correctNut();
}


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

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

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