generalizedNewtonian.H

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Class
    Foam::laminarModels::generalizedNewtonian

Description
    Turbulence model for shear-dependent Non-Newtonian flow.

SourceFiles
    generalizedNewtonian.C

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

#ifndef generalizedNewtonian_H
#define generalizedNewtonian_H

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

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

namespace Foam
{
namespace laminarModels
{

/*---------------------------------------------------------------------------*\
                    Class generalizedNewtonian Declaration
\*---------------------------------------------------------------------------*/

template<class BasicMomentumTransportModel>
class generalizedNewtonian
:
    public linearViscousStress<laminarModel<BasicMomentumTransportModel>>
{

protected:

    // Protected data

        //- Run-time selectable non-Newtonian viscosity model
        autoPtr<generalizedNewtonianViscosityModel> viscosityModel_;

        //- The non-Newtonian viscosity field
        volScalarField nu_;


    // Protected Member Functions

        virtual tmp<volScalarField> strainRate() const;


public:

    typedef typename BasicMomentumTransportModel::alphaField alphaField;
    typedef typename BasicMomentumTransportModel::rhoField rhoField;
    typedef typename BasicMomentumTransportModel::transportModel transportModel;


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


    // Constructors

        //- Construct from components
        generalizedNewtonian
        (
            const alphaField& alpha,
            const rhoField& rho,
            const volVectorField& U,
            const surfaceScalarField& alphaRhoPhi,
            const surfaceScalarField& phi,
            const transportModel& transport
        );


    // Selectors

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


    //- Destructor
    virtual ~generalizedNewtonian()
    {}


    // Member Functions

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

        //- Return the turbulence viscosity,
        //  i.e. 0 for generalized Newtonian 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 generalizedNewtonian viscosity
        virtual tmp<volScalarField> nuEff() const;

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

        //- Return the turbulence kinetic energy
        //  i.e. 0 for generalizedNewtonian flow
        virtual tmp<volScalarField> k() const;

        //- Return the turbulence kinetic energy dissipation rate,
        //  i.e. 0 for generalizedNewtonian flow
        virtual tmp<volScalarField> epsilon() const;

        //- Return the stress tensor [m^2/s^2]
        //  i.e. 0 for generalizedNewtonian flow
        virtual tmp<volSymmTensorField> sigma() const;

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


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

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

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

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

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

#endif

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