cavitationModel.H

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License
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Class
    Foam::compressible::twoPhaseChangeModels::cavitationModel
 
Description
    Abstract base class for cavitation models
 
SourceFiles
    cavitationModel.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef cavitationModel_H
#define cavitationModel_H
 
#include "compressibleTwoPhases.H"
#include "fvMatricesFwd.H"
#include "Pair.H"
#include "saturationPressureModel.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace compressible
{
 
/*---------------------------------------------------------------------------*\
                               Class cavitationModel
\*---------------------------------------------------------------------------*/
 
class cavitationModel
{
protected:
 
    // Protected data
 
        //- Phases
        const compressibleTwoPhases& phases_;
 
        //- Index of the liquid
        const bool liquidIndex_;
 
        //- The saturation pressure model
        autoPtr<saturationPressureModel> saturationModel_;
 
 
    // Protected Member Functions
 
        //- Return the liquid density
        inline const volScalarField::Internal& alphal() const
        {
            return phases_.alpha(liquidIndex_);
        }
 
        //- Return the vapour density
        inline const volScalarField::Internal& alphav() const
        {
            return phases_.alpha(!liquidIndex_);
        }
 
        //- Return the liquid density
        inline const volScalarField::Internal& rhol() const
        {
            return phases_.rho(liquidIndex_);
        }
 
        //- Return the vapour density
        inline const volScalarField::Internal& rhov() const
        {
            return phases_.rho(!liquidIndex_);
        }
 
        //- Return the liquid thermo
        inline const rhoThermo& thermol() const
        {
            return phases_.thermo(liquidIndex_);
        }
 
        //- Return the vapour thermo
        inline const rhoThermo& thermov() const
        {
            return phases_.thermo(!liquidIndex_);
        }
 
        //- Return the saturation vapour pressure for the liquid
        inline tmp<volScalarField::Internal> pSatl() const
        {
            return saturationModel_->pSat(thermol().T()());
        }
 
        //- Return the saturation vapour pressure for the vapour
        inline tmp<volScalarField::Internal> pSatv() const
        {
            return saturationModel_->pSat(thermov().T()());
        }
 
 
public:
 
    //- Runtime type information
    TypeName("cavitation");
 
 
    // Declare run-time constructor selection table
 
        declareRunTimeSelectionTable
        (
            autoPtr,
            cavitationModel,
            dictionary,
            (
                const dictionary& dict,
                const compressibleTwoPhases& phases
            ),
            (dict, phases)
        );
 
 
    // Constructors
 
        //- Construct for phases
        cavitationModel
        (
            const dictionary& dict,
            const compressibleTwoPhases& phases
        );
 
 
    // Selector
    static autoPtr<cavitationModel> New
    (
        const dictionary& dict,
        const compressibleTwoPhases& phases
    );
 
 
    //- Destructor
    virtual ~cavitationModel()
    {}
 
 
    // Member Functions
 
        //- Return the saturation vapour pressure for phase 1
        inline tmp<volScalarField::Internal> pSat1() const
        {
            return liquidIndex_ ? pSatv() : pSatl();
        }
 
        //- Return the saturation vapour pressure for phase 2
        inline tmp<volScalarField::Internal> pSat2() const
        {
            return liquidIndex_ ? pSatl() : pSatv();
        }
 
        //- Return the mass condensation and vaporisation rates as a
        //  coefficient to multiply alphav for the condensation rate and a
        //  coefficient to multiply alphal for the vaporisation rate
        virtual Pair<tmp<volScalarField::Internal>> mDotcvAlphal() const = 0;
 
        //- Return the mass condensation and vaporisation rates as coefficients
        //  to multiply (p - pSat)
        virtual Pair<tmp<volScalarField::Internal>> mDotcvP() const = 0;
 
        //- Return the mass transfer rates of the two phases as coefficients to
        //  multiply the volume fraction of the other phase
        inline Pair<tmp<volScalarField::Internal>> mDot12Alpha() const
        {
            return liquidIndex_ ? reverse(mDotcvAlphal()) : mDotcvAlphal();
        }
 
        //- Return the mass transfer rates of the two phases as coefficients to
        //  multiply (p - pSat)
        inline Pair<tmp<volScalarField::Internal>> mDot12P() const
        {
            return liquidIndex_ ? reverse(mDotcvP()) : mDotcvP();
        }
 
        //- Correct the cavitation model
        virtual void correct() = 0;
 
        //- Read the dictionary and update
        virtual bool read(const dictionary& dict) = 0;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace compressible
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //