semiPermeableBaffleMassFractionFvPatchScalarField.H

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Class
    Foam::semiPermeableBaffleMassFractionFvPatchScalarField
 
Description
    This is a mass-fraction boundary condition for a semi-permeable baffle.
 
    This condition models a baffle which is permeable to a some species and
    impermeable to others. It must be used in conjunction with a
    specieTransferVelocityFvPatchVectorField velocity condition, and a
    specieTransferTemperatureFvPatchScalarField  temperature condition.
 
    The mass flux of a species is calculated as a coefficient multiplied by the
    difference in a property across the baffle.
        \f[
            \phi_{Yi} = c A (\psi_i - \psi_{i,n})
        \f]
        where
        \vartable
            \phi_{Yi}  | Flux of the permeable specie [kg/s]
            c          | Transfer coefficient [kg/m^2/s/<property-dimensions>]
            A          | Patch face area [m^2]
            \psi_i     | Property on the patch [<property-dimensions>]
            \psi_{i,n} | Property on the neighbour patch [<property-dimensions>]
        \endvartable
 
    A species that the baffle is permeable to will, therefore, have a
    coefficient greater than zero, whilst a species that does not transfer will
    have a coefficient equal to zero.
 
Usage
    \table
        Property | Description                | Req'd? | Default
        c        | Transfer coefficient       | no     | 0
        property | Property used to drive the transfer; massFraction, \\
        moleFraction, molarConcentration, or partialPressure | if c is \\
        non-zero |
        phi      | Name of the flux field     | no     | phi
        U        | Name of the velocity field | no     | U
    \endtable
 
    Example of the boundary condition specification:
    \verbatim
    <patchName>
    {
        type            semiPermeableBaffleMassFraction;
        property        molarConcentration;
        c               1e-3;
        value           $internalField;
    }
    \endverbatim
 
See also
    Foam::specieTransferMassFractionFvPatchScalarField
    Foam::specieTransferVelocityFvPatchVectorField
    Foam::specieTransferTemperatureFvPatchScalarField
 
SourceFiles
    semiPermeableBaffleMassFractionFvPatchScalarField.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef semiPermeableBaffleMassFractionFvPatchScalarField_H
#define semiPermeableBaffleMassFractionFvPatchScalarField_H
 
#include "specieTransferMassFractionFvPatchScalarField.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
class basicSpecieMixture;
 
/*---------------------------------------------------------------------------*\
      Class semiPermeableBaffleMassFractionFvPatchScalarField Declaration
\*---------------------------------------------------------------------------*/
 
class semiPermeableBaffleMassFractionFvPatchScalarField
:
    public specieTransferMassFractionFvPatchScalarField
{
public:
 
    //- Runtime type information
    TypeName("semiPermeableBaffleMassFraction");
 
 
    // Constructors
 
        //- Construct from patch, internal field and dictionary
        semiPermeableBaffleMassFractionFvPatchScalarField
        (
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&,
            const dictionary&
        );
 
        //- Construct by mapping given fixedValueTypeFvPatchField
        //  onto a new patch
        semiPermeableBaffleMassFractionFvPatchScalarField
        (
            const semiPermeableBaffleMassFractionFvPatchScalarField&,
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&,
            const fvPatchFieldMapper&
        );
 
        //- Disallow copy without setting internal field reference
        semiPermeableBaffleMassFractionFvPatchScalarField
        (
            const semiPermeableBaffleMassFractionFvPatchScalarField&
        ) = delete;
 
        //- Copy constructor setting internal field reference
        semiPermeableBaffleMassFractionFvPatchScalarField
        (
            const semiPermeableBaffleMassFractionFvPatchScalarField&,
            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 semiPermeableBaffleMassFractionFvPatchScalarField
                (
                    *this,
                    iF
                )
            );
        }
 
 
    // Member Functions
 
        // Evaluation functions
 
            //- Return the flux of this species through the baffle
            virtual tmp<scalarField> calcPhiYp() const;
 
 
        //- Write
        virtual void write(Ostream&) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 
#endif
 
// ************************************************************************* //