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License
    This file is part of OpenFOAM.

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Class
    Foam::dragModels::TomiyamaKataokaZunSakaguchi

Description
    Drag model for gas-liquid system of Tomiyama et al.

    Reference:
    \verbatim
        Tomiyama, A., Kataoka, I., Zun, I., & Sakaguchi, T. (1998).
        Drag coefficients of single bubbles under normal and micro gravity
        conditions.
        JSME International Journal Series B Fluids and Thermal Engineering,
        41(2), 472-479.
    \endverbatim

SourceFiles
    TomiyamaKataokaZunSakaguchi.C

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

#ifndef TomiyamaKataokaZunSakaguchi_H
#define TomiyamaKataokaZunSakaguchi_H

#include "dragModel.H"

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

namespace Foam
{

class phasePair;

namespace dragModels
{

/*---------------------------------------------------------------------------*\
                           Class TomiyamaKataokaZunSakaguchi Declaration
\*---------------------------------------------------------------------------*/

class TomiyamaKataokaZunSakaguchi
:
    public dragModel
{
    // Private data

        //- Residual Reynolds Number
        const dimensionedScalar residualRe_;

        //- Residual Eotvos number
        const dimensionedScalar residualEo_;


public:

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


    // Constructors

        //- Construct from a dictionary and a phase pair
        TomiyamaKataokaZunSakaguchi
        (
            const dictionary& dict,
            const phasePair& pair,
            const bool registerObject
        );


    //- Destructor
    virtual ~TomiyamaKataokaZunSakaguchi();


    // Member Functions

        //- Drag coefficient
        virtual tmp<volScalarField> CdRe() const;
};


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

} // End namespace dragModels
} // End namespace Foam

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

#endif

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