FreeFOAM The Cross-Platform CFD Toolkit
sigmaRadial.C
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25 
26 #include "sigmaRadial.H"
28 
29 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
30 
31 namespace Foam
32 {
33 namespace extrudeModels
34 {
35 
36 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
37 
38 defineTypeNameAndDebug(sigmaRadial, 0);
39 
40 addToRunTimeSelectionTable(extrudeModel, sigmaRadial, dictionary);
41 
42 
43 // * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
44 
46 :
47  extrudeModel(typeName, dict),
48  RTbyg_(readScalar(coeffDict_.lookup("RTbyg"))),
49  pRef_(readScalar(coeffDict_.lookup("pRef"))),
50  pStrat_(readScalar(coeffDict_.lookup("pStrat")))
51 {}
52 
53 
54 // * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
55 
57 {}
58 
59 
60 // * * * * * * * * * * * * * * * * Operators * * * * * * * * * * * * * * * * //
61 
62 point sigmaRadial::operator()
63 (
64  const point& surfacePoint,
65  const vector& surfaceNormal,
66  const label layer
67 ) const
68 {
69  // radius of the surface
70  scalar rs = mag(surfacePoint);
71  vector rsHat = surfacePoint/rs;
72 
73  scalar p = pRef_ - layer*(pRef_ - pStrat_)/nLayers_;
74  scalar r = rs - RTbyg_*log(p/pRef_);
75 
76  return r*rsHat;
77 }
78 
79 
80 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
81 
82 } // End namespace extrudeModels
83 } // End namespace Foam
84 
85 // ************************ vim: set sw=4 sts=4 et: ************************ //
86