SchnerrSauer.H

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Class
    Foam::compressible::cavitationModels::SchnerrSauer
 
Description
    SchnerrSauer cavitation model.
 
    Reference:
    \verbatim
        Schnerr, G. H., & Sauer, J. (2001, May).
        Physical and numerical modeling of unsteady cavitation dynamics.
        In Fourth international conference on multiphase flow (Vol. 1).
        New Orleans, LO, USA: ICMF New Orleans.
    \endverbatim
 
Usage:
    \table
        Property | Description                    | Required | Default value
        liquid   | Name of the liquid phase       | yes      |
        pSat     | Saturation vapor pressure      | yes      |
        Uinf     | Free-stream velocity           | yes      |
        n        | Bubble number density          | yes      |
        dNuc     | Nucleation site diameter       | yes      |
        Cv       | Vapourisation rate coefficient | yes      |
        Cc       | Condensation rate coefficient  | yes      |
    \endtable
 
    Example:
    \verbatim
        model       SchnerrSauer;
 
        liquid      liquid;
 
        pSat        2300;
 
        n           1.6e+13;
        dNuc        2e-6;
        Cv          1;
        Cc          1;
    \endverbatim
 
SourceFiles
    SchnerrSauer.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef SchnerrSauer_H
#define SchnerrSauer_H
 
#include "cavitationModel.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace compressible
{
namespace cavitationModels
{
 
/*---------------------------------------------------------------------------*\
                              Class SchnerrSauer
\*---------------------------------------------------------------------------*/
 
class SchnerrSauer
:
    public cavitationModel
{
    // Private Data
 
        //- Bubble number density
        dimensionedScalar n_;
 
        //- Nucleation site diameter
        dimensionedScalar dNuc_;
 
        //- Vaporisation rate coefficient
        dimensionedScalar Cv_;
 
        //- Condensation rate coefficient
        dimensionedScalar Cc_;
 
        //- Zero with pressure dimensions
        dimensionedScalar p0_;
 
 
    // Private Member functions
 
        //- Nucleation site volume-fraction
        dimensionedScalar alphaNuc() const;
 
        //- Reciprocal bubble radius
        tmp<volScalarField::Internal> rRb
        (
            const volScalarField::Internal& limitedAlphal
        ) const;
 
        //- Part of the condensation and vaporisation rates
        tmp<volScalarField::Internal> pCoeff
        (
            const volScalarField::Internal& p,
            const volScalarField::Internal& pSat
        ) const;
 
 
public:
 
    //- Runtime type information
    TypeName("SchnerrSauer");
 
 
    // Constructors
 
        //- Construct for phases
        SchnerrSauer
        (
            const dictionary& dict,
            const compressibleTwoPhases& phases
        );
 
 
    //- Destructor
    virtual ~SchnerrSauer()
    {}
 
 
    // Member Functions
 
        //- 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;
 
        //- Return the mass condensation and vaporisation rates as coefficients
        //  to multiply (p - pSat)
        virtual Pair<tmp<volScalarField::Internal>> mDotcvP() const;
 
        //- Correct the SchnerrSauer phaseChange model
        virtual void correct();
 
        //- Read the dictionary and update
        virtual bool read(const dictionary& dict);
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace cavitationModels
} // End namespace compressible
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //