filmPyrolysisRadiativeCoupledMixedFvPatchScalarField.H

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Class
    Foam::compressible::
        filmPyrolysisRadiativeCoupledMixedFvPatchScalarField
 
Description
    Mixed boundary condition for temperature, to be used in the flow and
    pyrolysis regions when a film region model is used.
 
 
    Example usage:
        myInterfacePatchName
        {
            type            filmPyrolysisRadiativeCoupledMixed;
            Tnbr            T;
            kappa           fluidThermo;
            Qr              Qr;
            kappaName       none;
            filmDeltaDry    0.0;
            filmDeltaWet    3e-4;
            value           $internalField;
        }
 
    Needs to be on underlying mapped(Wall)FvPatch.
    It calculates local field as
         ratio = (filmDelta - filmDeltaDry)/(filmDeltaWet - filmDeltaDry),
 
    when ratio = 1 is considered wet and the film temperarture is fixed at
    the wall. If ratio = 0 (dry) it emulates the normal radiative solid BC.
 
    In between ratio 0 and 1 the gradient and value contributions are
    weighted using the ratio field in the followig way:
 
    qConv = ratio*htcwfilm*(Tfilm - *this);
    qRad = (1.0 - ratio)*Qr;
 
    Then the solid can gain or loose energy through radiation or conduction
    towards the film.
 
    Note: kappa : heat conduction at patch.
        Gets supplied how to lookup/calculate kappa:
    - 'lookup' : lookup volScalarField (or volSymmTensorField) with name
    - 'basicThermo' : use basicThermo and compressible::RASmodel to calculate K
    - 'solidThermo' : use basicSolidThermo K()
 
    Qr is the radiative flux defined in the radiation model.
 
 
SourceFiles
    filmPyrolysisRadiativeCoupledMixedFvPatchScalarField.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef filmPyrolysisRadiativeCoupledMixedFvPatchScalarField_H
#define filmPyrolysisRadiativeCoupledMixedFvPatchScalarField_H
 
#include "mixedFvPatchFields.H"
#include "temperatureCoupledBase.H"
#include "thermoSingleLayer.H"
#include "pyrolysisModel.H"
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
    Class filmPyrolysisRadiativeCoupledMixedFvPatchScalarField Declaration
\*---------------------------------------------------------------------------*/
 
class filmPyrolysisRadiativeCoupledMixedFvPatchScalarField
:
    public mixedFvPatchScalarField,
    public temperatureCoupledBase
{
public:
 
    typedef Foam::regionModels::surfaceFilmModels::thermoSingleLayer
        filmModelType;
 
    typedef Foam::regionModels::pyrolysisModels::pyrolysisModel
        pyrolysisModelType;
 
 
private:
 
    // Private data
 
        //- Name of film region
        const word filmRegionName_;
 
        //- Name of pyrolysis region
        const word pyrolysisRegionName_;
 
        //- Name of field on the neighbour region
        const word TnbrName_;
 
        //- Name of the radiative heat flux
        const word QrName_;
 
        //- Convective Scaling Factor (as determined by Prateep's tests)
        const scalar convectiveScaling_;
 
        //- Minimum delta film to be consired dry
        const scalar filmDeltaDry_;
 
        //- Maximum delta film to be consired wet
        const scalar filmDeltaWet_;
 
        //- Retrieve film model from the database
        const filmModelType& filmModel() const;
 
        //- Retrieve pyrolysis model from the database
        const pyrolysisModelType& pyrModel() const;
 
 
public:
 
    //- Runtime type information
    TypeName("filmPyrolysisRadiativeCoupledMixed");
 
 
    // Constructors
 
        //- Construct from patch and internal field
        filmPyrolysisRadiativeCoupledMixedFvPatchScalarField
        (
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&
        );
 
        //- Construct from patch, internal field and dictionary
        filmPyrolysisRadiativeCoupledMixedFvPatchScalarField
        (
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&,
            const dictionary&
        );
 
        //- Construct by mapping given
        //  turbulentTemperatureCoupledBaffleMixedFvPatchScalarField onto a
        //  new patch
        filmPyrolysisRadiativeCoupledMixedFvPatchScalarField
        (
            const
            filmPyrolysisRadiativeCoupledMixedFvPatchScalarField&,
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&,
            const fvPatchFieldMapper&
        );
 
        //- Construct and return a clone
        virtual tmp<fvPatchScalarField> clone() const
        {
            return tmp<fvPatchScalarField>
            (
                new filmPyrolysisRadiativeCoupledMixedFvPatchScalarField
                (
                    *this
                )
            );
        }
 
        //- Construct as copy setting internal field reference
        filmPyrolysisRadiativeCoupledMixedFvPatchScalarField
        (
            const filmPyrolysisRadiativeCoupledMixedFvPatchScalarField&,
            const DimensionedField<scalar, volMesh>&
        );
 
        //- Construct and return a clone setting internal field reference
        virtual tmp<fvPatchScalarField> clone
        (
            const DimensionedField<scalar, volMesh>& iF
        ) const
        {
            return tmp<fvPatchScalarField>
            (
                new filmPyrolysisRadiativeCoupledMixedFvPatchScalarField
                (
                    *this,
                    iF
                )
            );
        }
 
 
    // Member functions
 
        //- Get corresponding K field
        tmp<scalarField> K() const;
 
        //- Update the coefficients associated with the patch field
        virtual void updateCoeffs();
 
        //- Write
        virtual void write(Ostream&) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //