compressibleMultiphaseVoF.H

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Class
    Foam::solvers::compressibleMultiphaseVoF
 
Description
    Solver module for the solution of multiple compressible, isothermal
    immiscible fluids using a VOF (volume of fluid) phase-fraction based
    interface capturing approach, with optional mesh motion and mesh topology
    changes including adaptive re-meshing.
 
    The momentum and other fluid properties are of the "mixture" and a single
    momentum equation is solved.
 
    A mixture approach for momentum transport is provided in which a single
    laminar, RAS or LES model is selected to model the momentum stress.
 
    Uses the flexible PIMPLE (PISO-SIMPLE) solution for time-resolved and
    pseudo-transient and steady simulations.
 
SourceFiles
    compressibleMultiphaseVoF.C
 
See also
    Foam::solvers::VoFSolver
    Foam::solvers::multiphaseVoFSolver
 
\*---------------------------------------------------------------------------*/
 
#ifndef compressibleMultiphaseVoF_H
#define compressibleMultiphaseVoF_H
 
#include "multiphaseVoFSolver.H"
#include "compressibleMultiphaseVoFMixture.H"
#include "compressibleMomentumTransportModel.H"
#include "pressureReference.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace solvers
{
 
/*---------------------------------------------------------------------------*\
                          Class compressibleMultiphaseVoF Declaration
\*---------------------------------------------------------------------------*/
 
class compressibleMultiphaseVoF
:
    public multiphaseVoFSolver
{
 
protected:
 
    // Phase properties
 
        //- The compressible two-phase mixture
        compressibleMultiphaseVoFMixture& mixture;
 
        //- Reference to the phases
        UPtrListDictionary<compressibleVoFphase>& phases;
 
 
    // Thermophysical properties
 
        //- Reference to the mixture static pressure field
        volScalarField& p;
 
 
    // Pressure reference
 
        //- Pressure reference
        Foam::pressureReference pressureReference_;
 
 
    // Kinematic properties
 
        //- Kinetic energy field
        //  Used in the energy equation
        volScalarField K;
 
 
    // Momentum transport
 
        //- Momentum transport model pointer
        autoPtr<compressible::momentumTransportModel> momentumTransport_;
 
        //- Momentum transport model
        compressible::momentumTransportModel& momentumTransport;
 
 
    // Cached temporary fields
 
        //- Continuity error
        tmp<volScalarField::Internal> contErr;
 
 
    // Protected Member Functions
 
        //- Return the pressure reference
        virtual const Foam::pressureReference& pressureReference() const
        {
            return pressureReference_;
        }
 
        //- The flow is incompressible if all phases are incompressible
        virtual bool incompressible() const
        {
            return mixture.incompressible();
        }
 
        //- The flow is divergent if it is not incompressible
        //  Mass sources are not currently supported
        virtual bool divergent() const
        {
            return !incompressible();
        }
 
        //- Return the mixture compressibility/density
        //  Used by CorrectPhi for compressible mixtures following mesh change
        virtual tmp<volScalarField> psiByRho() const
        {
            return mixture.psiByRho();
        }
 
        //- Return the momentum equation stress term
        virtual tmp<fvVectorMatrix> divDevTau(volVectorField& U);
 
        //- Solve for the phase-fractions
        virtual void alphaPredictor();
 
 
private:
 
    // Private Member Functions
 
        //- Solve for the phase-fractions
        void alphaSolve();
 
 
public:
 
    //- Runtime type information
    TypeName("compressibleMultiphaseVoF");
 
 
    // Constructors
 
        //- Construct from region mesh
        compressibleMultiphaseVoF(fvMesh& mesh);
 
        //- Disallow default bitwise copy construction
        compressibleMultiphaseVoF
        (
            const compressibleMultiphaseVoF&
        ) = delete;
 
 
    //- Destructor
    virtual ~compressibleMultiphaseVoF();
 
 
    // Member Functions
 
        //- Called at the start of the PIMPLE loop
        virtual void prePredictor();
 
        //- Predict the momentum transport
        virtual void momentumTransportPredictor();
 
        //- Predict thermophysical transport
        virtual void thermophysicalTransportPredictor();
 
        //- Construct and optionally solve the momentum equation
        virtual void momentumPredictor();
 
        //- Construct and solve the energy equation,
        //  convert to temperature
        //  and update thermophysical and transport properties
        virtual void thermophysicalPredictor();
 
        //- Construct and solve the pressure equation in the PISO loop
        virtual void pressureCorrector();
 
        //- Correct the momentum transport
        virtual void momentumTransportCorrector();
 
        //- Correct the thermophysical transport
        virtual void thermophysicalTransportCorrector();
 
 
    // Member Operators
 
        //- Disallow default bitwise assignment
        void operator=(const compressibleMultiphaseVoF&) = delete;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace solvers
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //