CoreFlows/examples/C/IsothermalTwoFluid_2DInclinedSedimentation.cxx

   1 #include "IsothermalTwoFluid.hxx"
   2
   3 using namespace std;
   4
   5 int main(int argc, char** argv)
   6 {
   7         //Preprocessing: mesh and group creation
   8         cout << "Building Cartesian mesh " << endl;
   9         double xinf=0.0;
  10         double xsup=1.0;
  11         double yinf=0.0;
  12         double ysup=1.0;
  13         int nx=50;
  14         int ny=50;
  15         Mesh M(xinf,xsup,nx,yinf,ysup,ny);
  16         double eps=1.E-6;
  17         M.setGroupAtPlan(xsup,0,eps,"Wall");
  18         M.setGroupAtPlan(xinf,0,eps,"Wall");
  19         M.setGroupAtPlan(yinf,1,eps,"Wall");
  20         M.setGroupAtPlan(ysup,1,eps,"Wall");
  21         int spaceDim = M.getSpaceDimension();
  22
  23         // set the limit field for each boundary
  24         vector<double> wallVelocityX(2,0);
  25         vector<double> wallVelocityY(2,0);
  26
  27         // physical constants
  28         vector<double> gravite(spaceDim,0.) ;
  29         gravite[1]=-7;
  30         gravite[0]=7;
  31
  32         IsothermalTwoFluid  myProblem(around1bar300K,spaceDim);
  33         int nbPhase = myProblem.getNumberOfPhases();
  34         int nVar = myProblem.getNumberOfVariables();
  35         // Prepare for the initial condition
  36         Vector VV_Constant(nVar);
  37         // constant vector
  38         VV_Constant(0) = 0.5;
  39         VV_Constant(1) = 1e5;
  40         VV_Constant(2) = 0;
  41         VV_Constant(3) = 0;
  42         VV_Constant(4) = 0;
  43         VV_Constant(5) = 0;
  44
  45         //Initial field creation
  46         cout << "Building initial data" << endl;
  47         myProblem.setInitialFieldConstant(M,VV_Constant);
  48
  49         //set the boundary conditions
  50         myProblem.setWallBoundaryCondition("Wall",wallVelocityX,wallVelocityY);
  51
  52         // set physical parameters
  53         myProblem.setGravity(gravite);
  54
  55         // set the numerical method
  56         myProblem.setNumericalScheme(upwind, Explicit);
  57
  58         // name file save
  59         string fileName = "2DInclinedSedimentation";
  60
  61         // parameters calculation
  62         unsigned MaxNbOfTimeStep = 3 ;
  63         int freqSave = 1;
  64         double cfl = 0.25;
  65         double maxTime = 5;
  66         double precision = 1e-6;
  67
  68         myProblem.setCFL(cfl);
  69         myProblem.setPrecision(precision);
  70         myProblem.setMaxNbOfTimeStep(MaxNbOfTimeStep);
  71         myProblem.setTimeMax(maxTime);
  72         myProblem.setFreqSave(freqSave);
  73         myProblem.setFileName(fileName);
  74         myProblem.saveVelocity();
  75
  76         // evolution
  77         myProblem.initialize();
  78
  79         bool ok = myProblem.run();
  80         if (ok)
  81                 cout << "Simulation "<<fileName<<" is successful !" << endl;
  82         else
  83                 cout << "Simulation "<<fileName<<"  failed ! " << endl;
  84
  85         cout << "------------ End of calculation !!! -----------" << endl;
  86         myProblem.terminate();
  87
  88         return EXIT_SUCCESS;
  89 }