FreeFOAM The Cross-Platform CFD Toolkit
P1.H
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23 
24 Class
25  Foam::radiation::P1
26 
27 Description
28  Works well for combustion applications where optical thickness, tau is
29  large, i.e. tau = a*L > 3 (L = distance between objects)
30 
31  Assumes
32  - all surfaces are diffuse
33  - tends to over predict radiative fluxes from sources/sinks
34  *** SOURCES NOT CURRENTLY INCLUDED ***
35 
36 SourceFiles
37  P1.C
38 
39 \*---------------------------------------------------------------------------*/
40 
41 #ifndef radiationModelP1_H
42 #define radiationModelP1_H
43 
45 
46 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
47 
48 namespace Foam
49 {
50 namespace radiation
51 {
52 
53 /*---------------------------------------------------------------------------*\
54  Class P1 Declaration
55 \*---------------------------------------------------------------------------*/
56 
57 class P1
58 :
59  public radiationModel
60 {
61  // Private data
62 
63  //- Incident radiation / [W/m2]
64  volScalarField G_;
65 
66  //- Total radiative heat flux [W/m2]
67  volScalarField Qr_;
68 
69  //- Absorption coefficient
70  volScalarField a_;
71 
72  //- Emission coefficient
73  volScalarField e_;
74 
75  //- Emission contribution
76  volScalarField E_;
77 
78 
79  // Private member functions
80 
81  //- Disallow default bitwise copy construct
82  P1(const P1&);
83 
84  //- Disallow default bitwise assignment
85  void operator=(const P1&);
86 
87 
88 public:
89 
90  //- Runtime type information
91  TypeName("P1");
92 
93 
94  // Constructors
95 
96  //- Construct from components
97  P1(const volScalarField& T);
98 
99 
100  // Destructor
101  virtual ~P1();
102 
103 
104  // Member functions
105 
106  // Edit
107 
108  //- Solve radiation equation(s)
109  void calculate();
110 
111  //- Read radiation properties dictionary
112  bool read();
113 
114 
115  // Access
116 
117  //- Source term component (for power of T^4)
118  virtual tmp<volScalarField> Rp() const;
119 
120  //- Source term component (constant)
121  virtual tmp<DimensionedField<scalar, volMesh> > Ru() const;
122 };
123 
124 
125 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
126 
127 } // End namespace radiation
128 } // End namespace Foam
129 
130 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
131 
132 #endif
133 
134 // ************************ vim: set sw=4 sts=4 et: ************************ //