exponential.H

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License
    This file is part of OpenFOAM.
 
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Class
    Foam::wallBoilingModels::nucleateFluxModels::exponential
 
Description
    Nucleate flux sub-cooling correlation
 
    References:
    \verbatim
        Frost W. & Dzakowic G. S. (1967)
        An extension of the methods of predicting incipient
        boiling on commercially finished surfaces.
        ASME AIChE Heat Transfer Conf 67-HT-61, Seattle.
 
        Shirai, Y., Tatsumoto, H., Shiotsu, M., Hata, K.,
        Kobayashi, H., Naruo, Y., & Inatani, Y. (2010).
        Boiling heat transfer from a horizontal flat
        plate in a pool of liquid hydrogen.
        Cryogenics, 50(6-7), 410-416.
        DOI:10.1016/j.cryogenics.2010.04.001
    \endverbatim
 
Usage
    Example of the model specification:
    \verbatim
    nucleateFluxModel
    {
        // Mandatory entries
        type            exponential;
 
        // Optional entries
        a               <scalar>;
        b               <scalar>;
    }
    \endverbatim
 
    where the entries mean:
    \table
      Property   | Description                       | Type | Reqd | Deflt
      type       | Type name: exponential            | word | yes  | -
      a          | Pre-factor coefficient          | scalar | no   | 6309
      b          | Exponent coefficient            | scalar | no   | 2.52
    \endtable
 
SourceFiles
    exponential.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef exponential_H
#define exponential_H
 
#include "nucleateFluxModel.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace wallBoilingModels
{
namespace nucleateFluxModels
{
 
/*---------------------------------------------------------------------------*\
                         Class exponential Declaration
\*---------------------------------------------------------------------------*/
 
class exponential
:
    public nucleateFluxModel
{
    // Private Data
 
        //- Pre-factor coefficient
        scalar a_;
 
        //- Exponent coefficient
        scalar b_;
 
 
    // Private Member Functions
 
        //- No copy construct
        exponential(const exponential&) = delete;
 
        //- No copy assignment
        void operator=(const exponential&) = delete;
 
 
public:
 
    //- Runtime type information
    TypeName("exponential");
 
 
    // Constructors
 
        //- Construct from a dictionary
        exponential(const dictionary& dict);
 
 
    //- Destructor
    virtual ~exponential() = default;
 
 
    // Member Functions
 
        //- Calculate and return the nucleation-site density
        virtual tmp<scalarField> qNucleate
        (
            const phaseModel& liquid,
            const phaseModel& vapor,
            const label patchi,
            const scalarField& Tl,
            const scalarField& Tsatw,
            const scalarField& L
        ) const;
 
        //- Write
        virtual void write(Ostream& os) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace nucleateFluxModels
} // End namespace wallBoilingModels
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //