ArrheniusViscosity.H

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License
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Class
    Foam::regionModels::surfaceFilmModels::ArrheniusViscosity

Description
    The Arrhenius temperature-dependent viscosity model multiplies the viscosity
    of a base model by an Arrhenius-type temperature function:

        mu = mu0*exp(k1*(1/(T + k2) - 1/(Tref + k2)))

    Where:
        mu0 is the base-model viscosity
        k1 and k2 are Arrhenius coefficients
        T is the local temperature
        Tref is the reference temperature

SourceFiles
    ArrheniusViscosity.C

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

#ifndef ArrheniusViscosity_H
#define ArrheniusViscosity_H

#include "filmViscosityModel.H"

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

namespace Foam
{
namespace regionModels
{
namespace surfaceFilmModels
{

/*---------------------------------------------------------------------------*\
                    Class ArrheniusViscosity Declaration
\*---------------------------------------------------------------------------*/

class ArrheniusViscosity
:
    public filmViscosityModel
{
protected:

    // Protected data

        //- Base viscosity model
        autoPtr<filmViscosityModel> viscosity_;

        //- Coefficient k1
        dimensionedScalar k1_;

        //- Coefficient k2
        dimensionedScalar k2_;

        //- Reference temperature
        dimensionedScalar Tref_;


public:

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


    // Constructors

        //- Construct from surface film model
        ArrheniusViscosity
        (
            surfaceFilmRegionModel& film,
            const dictionary& dict,
            volScalarField& mu
        );

        //- Disallow default bitwise copy construction
        ArrheniusViscosity(const ArrheniusViscosity&) = delete;


    //- Destructor
    virtual ~ArrheniusViscosity();


    // Member Functions

        //- Correct
        virtual void correct
        (
            const volScalarField& p,
            const volScalarField& T
        );


    // Member Operators

        //- Disallow default bitwise assignment
        void operator=(const ArrheniusViscosity&) = delete;
};


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

} // End namespace surfaceFilmModels
} // End namespace regionModels
} // End namespace Foam

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

#endif

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