FreeFOAM The Cross-Platform CFD Toolkit
Smagorinsky.C
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25 
26 #include "Smagorinsky.H"
28 
29 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
30 
31 namespace Foam
32 {
33 namespace incompressible
34 {
35 namespace LESModels
36 {
37 
38 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
39 
40 defineTypeNameAndDebug(Smagorinsky, 0);
41 addToRunTimeSelectionTable(LESModel, Smagorinsky, dictionary);
42 
43 // * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
44 
45 void Smagorinsky::updateSubGridScaleFields(const volTensorField& gradU)
46 {
47  nuSgs_ = ck_*delta()*sqrt(k(gradU));
49 }
50 
51 
52 // * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
53 
54 Smagorinsky::Smagorinsky
55 (
56  const volVectorField& U,
57  const surfaceScalarField& phi,
58  transportModel& transport
59 )
60 :
61  LESModel(typeName, U, phi, transport),
62  GenEddyVisc(U, phi, transport),
63 
64  ck_
65  (
67  (
68  "ck",
69  coeffDict_,
70  0.094
71  )
72  )
73 {
74  updateSubGridScaleFields(fvc::grad(U));
75 
76  printCoeffs();
77 }
78 
79 
80 // * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
81 
83 {
84  GenEddyVisc::correct(gradU);
85  updateSubGridScaleFields(gradU());
86 }
87 
88 
90 {
91  if (GenEddyVisc::read())
92  {
93  ck_.readIfPresent(coeffDict());
94 
95  return true;
96  }
97  else
98  {
99  return false;
100  }
101 }
102 
103 
104 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
105 
106 } // End namespace LESModels
107 } // End namespace incompressible
108 } // End namespace Foam
109 
110 // ************************ vim: set sw=4 sts=4 et: ************************ //