Stokes.H

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    Copyright (C) 2019-2021 OpenCFD Ltd.
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Class
    Foam::laminarModels::Stokes

Group
    grpLaminar

Description
    Turbulence model for Stokes flow.

SourceFiles
    Stokes.C

\*---------------------------------------------------------------------------*/

#ifndef Stokes_H
#define Stokes_H

#include "laminarModel.H"
#include "linearViscousStress.H"

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

namespace Foam
{
namespace laminarModels
{

/*---------------------------------------------------------------------------* \
                           Class Stokes Declaration
\*---------------------------------------------------------------------------*/

template<class BasicTurbulenceModel>
class Stokes
:
    public linearViscousStress<laminarModel<BasicTurbulenceModel>>
{

public:

    typedef typename BasicTurbulenceModel::alphaField alphaField;
    typedef typename BasicTurbulenceModel::rhoField rhoField;
    typedef typename BasicTurbulenceModel::transportModel transportModel;


    //- Runtime type information
    TypeName("Stokes");


    // Constructors

        //- Construct from components
        Stokes
        (
            const alphaField& alpha,
            const rhoField& rho,
            const volVectorField& U,
            const surfaceScalarField& alphaRhoPhi,
            const surfaceScalarField& phi,
            const transportModel& transport,
            const word& propertiesName = turbulenceModel::propertiesName
        );


    // Selectors

        //- Return a reference to the selected turbulence model
        static autoPtr<Stokes> New
        (
            const alphaField& alpha,
            const rhoField& rho,
            const volVectorField& U,
            const surfaceScalarField& alphaRhoPhi,
            const surfaceScalarField& phi,
            const transportModel& transport,
            const word& propertiesName = turbulenceModel::propertiesName
        );


    //- Destructor
    virtual ~Stokes() = default;


    // Member Functions

        //- Const access to the coefficients dictionary
        virtual const dictionary& coeffDict() const;

        //- Read turbulenceProperties dictionary
        virtual bool read();

        //- Return the turbulence viscosity, i.e. 0 for Stokes flow
        virtual tmp<volScalarField> nut() const;

        //- Return the turbulence viscosity on patch
        virtual tmp<scalarField> nut(const label patchi) const;

        //- Return the effective viscosity, i.e. the Stokes viscosity
        virtual tmp<volScalarField> nuEff() const;

        //- Return the effective viscosity on patch
        virtual tmp<scalarField> nuEff(const label patchi) const;

        //- Correct the Stokes viscosity
        virtual void correct();
};


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

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

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

#ifdef NoRepository
    #include "Stokes.C"
#endif

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

#endif

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