twoPhases.H

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License
    This file is part of OpenFOAM.
 
    OpenFOAM is free software: you can redistribute it and/or modify it
    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.
 
    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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    for more details.
 
    You should have received a copy of the GNU General Public License
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
Class
    Foam::twoPhases
 
Description
    Interface to two phases
 
SourceFiles
    twoPhases.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef twoPhases_H
#define twoPhases_H
 
#include "volFields.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                         Class twoPhases Declaration
\*---------------------------------------------------------------------------*/
 
class twoPhases
{
public:
 
    //- Runtime type information
    TypeName("twoPhases");
 
 
    // Constructors
 
        //- Default construct
        twoPhases()
        {}
 
 
    //- Destructor
    virtual ~twoPhases()
    {}
 
 
    // Member Functions
 
        //- Access the mesh
        const fvMesh& mesh() const
        {
            return alpha1().mesh();
        }
 
        //- Return the index associated with a given phase name
        inline bool index(const word& name) const
        {
            if (alpha1().group() == name)
            {
                return false;
            }
 
            if (alpha2().group() == name)
            {
                return true;
            }
 
            FatalErrorInFunction
                << "Index of phase " << name << " requested from phases"
                << alpha1().group() << " and " << alpha2().group()
                << exit(FatalError);
            return false;
        }
 
        //- Return the volume-fraction of phase 1
        virtual const volScalarField& alpha1() const = 0;
 
        //- Return the volume-fraction of phase 2
        virtual const volScalarField& alpha2() const = 0;
 
        //- Return the volume-fraction of a given phase
        const volScalarField& alpha(const bool index) const
        {
            return index ? alpha2() : alpha1();
        }
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //