FreeFOAM The Cross-Platform CFD Toolkit
LarsenBorgnakkeVariableHardSphere.H
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23 Class
24  Foam::LarsenBorgnakkeVariableHardSphere
25 
26 Description
27  Variable Hard Sphere BinaryCollision Model with Larsen Borgnakke internal
28  energy redistribution. Based on the INELRS subroutine in Bird's DSMC0R.FOR
29 
30 \*---------------------------------------------------------------------------*/
31 
32 #ifndef LarsenBorgnakkeVariableHardSphere_H
33 #define LarsenBorgnakkeVariableHardSphere_H
34 
36 
37 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
38 
39 namespace Foam
40 {
41 /*---------------------------------------------------------------------------*\
42  Class LarsenBorgnakkeVariableHardSphere Declaration
43 \*---------------------------------------------------------------------------*/
44 
45 template<class CloudType>
47 :
48  public BinaryCollisionModel<CloudType>
49 {
50  // Private data
51 
52  //- Reference temperature
53  const scalar Tref_;
54 
55  //- Relaxation collision number
56  const scalar relaxationCollisionNumber_;
57 
58 
59  // Private Member Functions
60 
61  //- Calculate the energy ratio for distribution to internal degrees of
62  // freedom
63  scalar energyRatio
64  (
65  scalar ChiA,
66  scalar ChiB
67  );
68 
69 
70 public:
71 
72  //- Runtime type information
73  TypeName("LarsenBorgnakkeVariableHardSphere");
74 
75 
76  // Constructors
77 
78  //- Construct from dictionary
80  (
81  const dictionary& dict,
82  CloudType& cloud
83  );
84 
85 
86  // Destructor
88 
89 
90  // Member Functions
91 
92  //- Return the collision cross section * relative velocity product
93  virtual scalar sigmaTcR
94  (
95  label typeIdP,
96  label typeIdQ,
97  const vector& UP,
98  const vector& UQ
99  ) const;
100 
101  //- Apply collision
102  virtual void collide
103  (
104  label typeIdP,
105  label typeIdQ,
106  vector& UP,
107  vector& UQ,
108  scalar& EiP,
109  scalar& EiQ
110  );
111 };
112 
113 
114 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
115 
116 } // End namespace Foam
117 
118 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
119 
120 #ifdef NoRepository
122 #endif
123 
124 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
125 
126 #endif
127 
128 // ************************ vim: set sw=4 sts=4 et: ************************ //