P1.H

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    Copyright (C) 2011-2017 OpenFOAM Foundation
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License
    This file is part of OpenFOAM.
 
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Class
    Foam::radiation::P1
 
Group
    grpRadiationModels
 
Description
    Works well for combustion applications where optical thickness, tau is
    large, i.e. tau = a*L > 3 (L = distance between objects)
 
    Assumes
     - all surfaces are diffuse
     - tends to over predict radiative fluxes from sources/sinks
       *** SOURCES NOT CURRENTLY INCLUDED ***
 
SourceFiles
    P1.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef radiation_P1_H
#define radiation_P1_H
 
#include "radiationModel.H"
#include "volFields.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace radiation
{
 
/*---------------------------------------------------------------------------*\
                           Class P1 Declaration
\*---------------------------------------------------------------------------*/
 
class P1
:
    public radiationModel
{
    // Private data
 
        //- Incident radiation / [W/m2]
        volScalarField G_;
 
        //- Total radiative heat flux [W/m2]
        volScalarField qr_;
 
        //- Absorption coefficient
        volScalarField a_;
 
        //- Emission coefficient
        volScalarField e_;
 
        //- Emission contribution
        volScalarField E_;
 
 
    // Private Member Functions
 
        //- No copy construct
        P1(const P1&) = delete;
 
        //- No copy assignment
        void operator=(const P1&) = delete;
 
 
public:
 
    //- Runtime type information
    TypeName("P1");
 
 
    // Constructors
 
        //- Construct from components
        P1(const volScalarField& T);
 
        //- Construct from components
        P1(const dictionary& dict, const volScalarField& T);
 
 
    //- Destructor
    virtual ~P1() = default;
 
 
    // Member functions
 
        // Edit
 
            //- Solve radiation equation(s)
            void calculate();
 
            //- Read radiation properties dictionary
            bool read();
 
 
        // Access
 
            //- Source term component (for power of T^4)
            virtual tmp<volScalarField> Rp() const;
 
            //- Source term component (constant)
            virtual tmp<volScalarField::Internal> Ru() const;
 
            //- Number of bands
            label nBands() const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace radiation
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //