FreeFOAM The Cross-Platform CFD Toolkit
buoyantBoussinesqPimpleFoam.C
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1 /*---------------------------------------------------------------------------*\
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3  \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
4  \\ / O peration |
5  \\ / A nd | Copyright (C) 2008-2009 OpenCFD Ltd.
6  \\/ M anipulation |
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23 
24 Application
25  buoyantBoussinesqPimpleFoam
26 
27 Description
28  Transient solver for buoyant, turbulent flow of incompressible fluids
29 
30  Uses the Boussinesq approximation:
31  \f[
32  rho_{k} = 1 - beta(T - T_{ref})
33  \f]
34 
35  where:
36  \f$ rho_{k} \f$ = the effective (driving) kinematic density
37  beta = thermal expansion coefficient [1/K]
38  T = temperature [K]
39  \f$ T_{ref} \f$ = reference temperature [K]
40 
41  Valid when:
42  \f[
43  rho_{k} << 1
44  \f]
45 
46 \*---------------------------------------------------------------------------*/
47 
48 #include <finiteVolume/fvCFD.H>
51 
52 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
53 
54 int main(int argc, char *argv[])
55 {
56  #include <OpenFOAM/setRootCase.H>
57  #include <OpenFOAM/createTime.H>
58  #include <OpenFOAM/createMesh.H>
60  #include "createFields.H"
63  #include <finiteVolume/CourantNo.H>
65 
66  // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
67 
68  Info<< "\nStarting time loop\n" << endl;
69 
70  while (runTime.loop())
71  {
72  Info<< "Time = " << runTime.timeName() << nl << endl;
73 
76  #include <finiteVolume/CourantNo.H>
77  #include <finiteVolume/setDeltaT.H>
78 
79  // --- Pressure-velocity PIMPLE corrector loop
80  for (int oCorr=0; oCorr<nOuterCorr; oCorr++)
81  {
82  bool finalIter = oCorr == nOuterCorr-1;
83 
84  if (nOuterCorr != 1)
85  {
87  }
88 
89  #include "UEqn.H"
90  #include "TEqn.H"
91 
92  // --- PISO loop
93  for (int corr=0; corr<nCorr; corr++)
94  {
95  #include "pEqn.H"
96  }
97 
98  turbulence->correct();
99  }
100 
101  runTime.write();
102 
103  Info<< "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
104  << " ClockTime = " << runTime.elapsedClockTime() << " s"
105  << nl << endl;
106  }
107 
108  Info<< "End\n" << endl;
109 
110  return 0;
111 }
112 
113 
114 // ************************************************************************* //