Terme_Source_Solide_SWIFT_VDF.cpp

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#include <Terme_Source_Solide_SWIFT_VDF.h>
#include <math.h>
#include <Champ_Uniforme.h>
#include <Domaine_VDF.h>
#include <Conduction.h>
#include <Interprete.h>
#include <Probleme_base.h>
#include <Milieu_base.h>
 
Implemente_instanciable(Terme_Source_Solide_SWIFT_VDF,"Solide_SWIFT_VDF_P0_VDF",Source_base);
 
Sortie& Terme_Source_Solide_SWIFT_VDF::printOn(Sortie& s ) const
{
  return s << que_suis_je() ;
}
 
Entree& Terme_Source_Solide_SWIFT_VDF::readOn(Entree& is )
{
  int i,compteur = 0;
  Motcle motlu;
  Cerr << "         ######### Warning ! #########" << finl;
  Cerr << " For the moment, this forcing term is only available" << finl;
  Cerr << "     for recovering identical solid meshes." << finl;
  Cerr << " If otherwise, it will produce a beautiful core-dump..." << finl;
 
  for(i=0 ; i<3 ; i++)
    {
      is >> motlu;
 
      if(motlu == "TAU")
        {
          compteur++;
          is >> tau;
          if(tau==0)
            {
              Cerr << "TAU can not be equal to 0." << finl;
              exit();
            }
          Cerr << "Characteristic time TAU is : " << tau << finl;
        }
      else if(motlu == "pb_swift")
        {
          compteur++;
          Nom swift;
          is >> swift;
          pb_swift=ref_cast(Probleme_base, Interprete::objet(swift));
          Cerr << "pb_swift is: " << pb_swift->le_nom() << finl;
        }
      else if(motlu == "pb_corse")
        {
          compteur++;
          Nom corse;
          is >> corse;
          pb_corse=ref_cast(Probleme_base, Interprete::objet(corse));
          Cerr << "pb_coarse is: " << pb_corse->le_nom() << finl;
        }
      else
        {
          Cerr << "An argument of Terme_Source_Solide_SWIFT_VDF is not correct !" << finl;
          exit();
        }
    }
  if(compteur != 3)
    {
      Cerr << "The forcing term for the mean solid temperature field with the SWIFT method needs 3 arguments" << finl;
      Cerr << "Syntax : " << finl;
      Cerr << "Solide_SWIFT SWIFT pb_sol_SWIFT COARSE pb_sol_coarse TAU tau " << finl;
      exit();
    }
 
 
  // Retrieve the conduction equations from both domains (SWIFT and coarse)
  int flag=0;
  for(i=0; i<pb_swift->nombre_d_equations(); i++)
    {
      if(sub_type(Conduction,pb_swift->equation(i)))
        {
          eq_swift = ref_cast(Conduction,pb_swift->equation(i));
          flag=1;
        }
    }
  if (flag==0)
    {
      Cerr << "Error : The Conduction equation was not found...!" << finl;
      Cerr << "for the SWIFT solid forcing term (in pb_swift)." << finl;
      exit();
    }
 
  flag=0;
  for(i=0; i<pb_corse->nombre_d_equations(); i++)
    {
      if(sub_type(Conduction,pb_corse->equation(i)))
        {
          eq_corse = ref_cast(Conduction,pb_corse->equation(i));
          flag=1;
        }
    }
  if (flag==0)
    {
      Cerr << "Error : The Conduction equation was not found...!" << finl;
      Cerr << "for the SWIFT solid forcing term (in pb_coarse)." << finl;
      exit();
    }
 
  init_calcul_moyenne(eq_swift.valeur(),Y_swift,corresp_swift,compt_swift);
  init_calcul_moyenne(eq_corse.valeur(),Y_corse,corresp_corse,compt_corse);
 
  // Compute the correspondence table between an element of Tmoy_swift and the corresponding element of Tmoy_corse
  // to compute the forcing term.
  correspondance_SWIFT_coarse();
 
  return is;
 
}
 
void Terme_Source_Solide_SWIFT_VDF::associer_domaines(const Domaine_dis_base& domaine_dis, const Domaine_Cl_dis_base& domaine_Cl_dis)
{
}
 
void Terme_Source_Solide_SWIFT_VDF::associer_pb(const Probleme_base& pb)
{
}
 
void Terme_Source_Solide_SWIFT_VDF::init_calcul_moyenne(const Conduction& my_eqn, DoubleVect& Y, IntVect& corresp, IntVect& compt)
{
  int num_elem, j, indic, trouve;
  double y;
 
  const Domaine_dis_base& zdisbase = my_eqn.inconnue().domaine_dis_base();
  const Domaine_VDF& domaine_VDF      = ref_cast(Domaine_VDF, zdisbase);
  const DoubleTab& xp           = domaine_VDF.xp();
 
  int nb_elems   = domaine_VDF.domaine().nb_elem();
  int nb_faces_x = domaine_VDF.nb_faces_X();
  int nb_faces_z = domaine_VDF.nb_faces_Z();
 
  int Nx = nb_elems / (nb_faces_x - nb_elems);
  int Nz = nb_elems / (nb_faces_z - nb_elems);
  int Ny = nb_elems / Nx / Nz;
 
  Y.resize(Ny);
  compt.resize(Ny);
  corresp.resize(nb_elems);
 
  Y = -100.;
  compt = 0;
  corresp = -1;
 
  j = 0;
  indic = 0;
  for (num_elem = 0; num_elem < nb_elems; num_elem++)
    {
      y = xp(num_elem, 1);
      trouve = 0;
      for (j = 0; j < indic + 1; j++)
        {
          if (std::fabs(y - Y[j]) <= 1e-8)
            {
              corresp[num_elem] = j;
              compt[j]++;
              j = indic + 1;
              trouve = 1;
              break;
            }
        }
      if (trouve == 0)
        {
          corresp[num_elem] = indic;
          Y[indic] = y;
          compt[indic]++;
          indic++;
        }
    }
}
 
void Terme_Source_Solide_SWIFT_VDF::correspondance_SWIFT_coarse()
{
  int t_S = Y_swift.size();
  int t_C = Y_corse.size();
  corresp_SC.resize(t_S);
 
  for (int j = 0; j < t_S; j++)
    {
      int burk = 1;
      for (int i = 0; i < t_C; i++)
        {
          if (std::fabs(Y_swift[j] - Y_corse[i]) <= 1e-8)
            {
              burk = 0;
              corresp_SC[j] = i;
            }
        }
      if (burk)
        {
          Cerr << "## ACHTUNG !!! The equivalence between" << finl;
          Cerr << "## the two domains at the Y level was not found!" << finl;
        }
    }
}
 
void Terme_Source_Solide_SWIFT_VDF::calcul_moyenne(const Conduction& my_eqn, DoubleVect& T_moy, const IntVect& corresp, const IntVect& compt) const
{
  const Domaine_dis_base& zdisbase = my_eqn.inconnue().domaine_dis_base();
  const Domaine_VDF& domaine_VDF      = ref_cast(Domaine_VDF, zdisbase);
  const DoubleTab& Temp         = my_eqn.inconnue().valeurs();
 
  int nb_elems   = domaine_VDF.domaine().nb_elem();
  int nb_faces_x = domaine_VDF.nb_faces_X();
  int nb_faces_z = domaine_VDF.nb_faces_Z();
 
  int Nx = nb_elems / (nb_faces_x - nb_elems);
  int Nz = nb_elems / (nb_faces_z - nb_elems);
  int Ny = nb_elems / Nx / Nz;
 
  int j = 0;
  T_moy.resize(Ny);
  T_moy = 0.;
 
  for (j = 0; j < nb_elems; j++)
    T_moy[corresp[j]] += Temp[j];
  for (j = 0; j < Ny; j++)
    T_moy[j] /= compt[j];
}
 
void Terme_Source_Solide_SWIFT_VDF::ajouter_blocs(matrices_t matrices, DoubleTab& resu, const tabs_t& semi_impl) const
{
 
  const Domaine_dis_base& zdisbase = eq_swift->inconnue().domaine_dis_base();
  const Domaine_VDF& domaine_VDF      = ref_cast(Domaine_VDF, zdisbase);
  int nb_elems                   = domaine_VDF.nb_elem();
  const DoubleVect& volume         = domaine_VDF.volumes();
 
  DoubleVect Tmoy_swift;        // Profils de temperature moyenne.
  DoubleVect Tmoy_corse;
 
  // Compute the mean temperature profiles in both solids.
  calcul_moyenne(eq_swift.valeur(), Tmoy_swift, corresp_swift, compt_swift);
  calcul_moyenne(eq_corse.valeur(), Tmoy_corse, corresp_corse, compt_corse);
 
  for (int num_elem = 0; num_elem < nb_elems; num_elem++)
    {
      resu(num_elem) += volume(num_elem) * (Tmoy_corse(corresp_SC[corresp_swift[num_elem]]) - Tmoy_swift(corresp_swift[num_elem])) / tau;
    }
 
}
 
DoubleTab& Terme_Source_Solide_SWIFT_VDF::calculer(DoubleTab& resu) const
{
  resu = 0;
  return ajouter(resu);
}