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License
    This file is part of OpenFOAM.

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    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

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    You should have received a copy of the GNU General Public License
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Class
    Foam::aspectRatioModels::VakhrushevEfremov

Description
    Aspect ratio model of Vakhrushev and Efremov.

    Reference:
    \verbatim
        Vakhrushev, I. A., & Efremov, G. I. (1970).
        Interpolation formula for computing the velocities of single gas bubbles
        in liquids.
        Chemistry and Technology of Fuels and Oils, 6(5), 376-379.
    \endverbatim

SourceFiles
    VakhrushevEfremov.C

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

#ifndef VakhrushevEfremov_H
#define VakhrushevEfremov_H

#include "aspectRatioModel.H"

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

namespace Foam
{
namespace aspectRatioModels
{

/*---------------------------------------------------------------------------*\
                       Class VakhrushevEfremov Declaration
\*---------------------------------------------------------------------------*/

class VakhrushevEfremov
:
    public aspectRatioModel
{
public:

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


    // Constructors

        //- Construct from a dictionary and an ordered phase pair
        VakhrushevEfremov
        (
            const dictionary& dict,
            const phasePair& pair
        );


    //- Destructor
    virtual ~VakhrushevEfremov();


    // Member Functions

        //- Aspect ratio
        virtual tmp<volScalarField> E() const;
};


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

} // End namespace aspectRatioModels
} // End namespace Foam

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

#endif

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