Fresnel.H

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    This file is part of OpenFOAM.
 
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Class
    Foam::radiation::Fresnel
 
Description
    General Fresnel reflection model bewtween a dialectric and an absorbing
    medium.
 
    Radiative heat transfer. Micheal Modest. 3dr Edition. Chapter 2.5
 
SourceFiles
    scatterModel.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef radiation_Fresnel_H
#define radiation_Fresnel_H
 
#include "reflectionModel.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace radiation
{
 
/*---------------------------------------------------------------------------*\
                           Class Fresnel Declaration
\*---------------------------------------------------------------------------*/
 
class Fresnel
:
    public reflectionModel
{
    // Private data
 
        //- Coefficients dictionary
        dictionary coeffsDict_;
 
        //- Complex index of refraction for medium 1
        Pair<scalar> nk1_;
 
        //- Complex index of refraction for medium 2
        Pair<scalar> nk2_;
 
 
public:
 
    //- Runtime type information
    TypeName("Fresnel");
 
    //- Construct from components
    Fresnel(const dictionary& dict, const fvMesh& mesh);
 
    //- Destructor
    virtual ~Fresnel() = default;
 
 
    // Member Functions
 
        //- Return reflected direction
        virtual vector R(const vector& incident, const vector& n) const;
 
        //- Return reflectivity from medium1 to medium2 and a incident angle.
        //  nk1 = (n1 - i k1) from medium 1.
        virtual scalar rho(const scalar incidentAngle) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace radiation
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //