Modele_turbulence_hyd_LES_VEF.cpp

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#include <Modele_turbulence_hyd_LES_VEF.h>
#include <Schema_Temps_base.h>
#include <Domaine_Cl_VEF.h>
#include <Equation_base.h>
#include <Domaine_VEF.h>
#include <Periodique.h>
#include <Debog.h>
 
Implemente_instanciable(Modele_turbulence_hyd_LES_VEF, "Modele_turbulence_hyd_sous_maille_VEF", Modele_turbulence_hyd_LES_VEF_base);
 
Sortie& Modele_turbulence_hyd_LES_VEF::printOn(Sortie& s) const { return s << que_suis_je() << " " << le_nom(); }
 
Entree& Modele_turbulence_hyd_LES_VEF::readOn(Entree& s) { return Modele_turbulence_hyd_LES_VEF_base::readOn(s); }
 
Champ_Fonc_base& Modele_turbulence_hyd_LES_VEF::calculer_viscosite_turbulente()
{
  static const double Csm1 = CSM1;
  const Domaine_VEF& domaine_VEF = ref_cast(Domaine_VEF, le_dom_VF_.valeur());
  const Domaine_Cl_VEF& domaine_Cl_VEF = ref_cast(Domaine_Cl_VEF, le_dom_Cl_.valeur());
  double temps = mon_equation_->inconnue().temps();
  DoubleTab& visco_turb = la_viscosite_turbulente_->valeurs();
  const int nb_face = domaine_VEF.nb_faces();
  const int nb_face_tot = domaine_VEF.nb_faces_tot();
  const int nb_elem = domaine_VEF.nb_elem();
  const IntTab& face_voisins = domaine_VEF.face_voisins();
  int elem1, elem2, fac = 0, i;
  double temp;
 
  F2_.resize(nb_face_tot);
  r_.resize(nb_face_tot);
 
  calculer_fonction_structure();
 
  if (visco_turb.size() != nb_elem)
    {
      Cerr << "erreur dans la taille du DoubleTab valeurs de la viscosite" << finl;
      Process::exit();
    }
  visco_turb = 0.;
 
  // Traitement des bords
 
  const Conds_lim& les_cl = domaine_Cl_VEF.les_conditions_limites();
 
  for (i = 0; i < les_cl.size(); i++)
    {
      const Cond_lim& la_cl = les_cl[i];
      const Front_VF& la_front_dis = ref_cast(Front_VF, la_cl->frontiere_dis());
      int ndeb = la_front_dis.num_premiere_face();
      int nfin = ndeb + la_front_dis.nb_faces();
 
      if (sub_type(Periodique, la_cl.valeur()))
        for (fac = ndeb; fac < nfin; fac++)
          {
            elem1 = face_voisins(fac, 0);
            elem2 = face_voisins(fac, 1);
            temp = Csm1 * r_(fac) * sqrt(F2_(fac));
            visco_turb(elem1) += 0.5 * temp;
            visco_turb(elem2) += 0.5 * temp;
          }
      else
        for (fac = ndeb; fac < nfin; fac++)
          {
            elem1 = face_voisins(fac, 0);
            temp = Csm1 * r_(fac) * sqrt(F2_(fac));
            visco_turb(elem1) += temp;
          }
    }
 
  // Traitement des faces internes
  for (; fac < nb_face; fac++)
    {
      elem1 = face_voisins(fac, 0);
      elem2 = face_voisins(fac, 1);
      temp = Csm1 * r_(fac) * sqrt(F2_(fac));
      visco_turb(elem1) += temp;
      visco_turb(elem2) += temp;
    }
 
  visco_turb /= (domaine_VEF.domaine().nb_faces_elem());
 
  la_viscosite_turbulente_->changer_temps(temps);
  return la_viscosite_turbulente_;
}
 
void Modele_turbulence_hyd_LES_VEF::calculer_fonction_structure()
{
  const DoubleTab& la_vitesse = mon_equation_->inconnue().valeurs();
  const Domaine_Cl_VEF& domaine_Cl_VEF = ref_cast(Domaine_Cl_VEF, le_dom_Cl_.valeur());
  const Domaine_VEF& domaine_VEF = ref_cast(Domaine_VEF, le_dom_VF_.valeur());
 
  const int nb_face = domaine_VEF.nb_faces();
  const IntTab& elem_faces = domaine_VEF.elem_faces();
  const IntTab& face_voisins = domaine_VEF.face_voisins();
  const DoubleTab& xv = domaine_VEF.xv();
 
  DoubleVect d2(dimension + 1), dv(dimension);
  DoubleTab dd2(dimension + 1, 2);
 
  int fac = 0, i, j, z;
  IntVect num(2);
 
  // On calcule tout d'abord F2 pour les faces se trouvant sur
  // les bords du domaine
 
  const Conds_lim& les_cl = domaine_Cl_VEF.les_conditions_limites();
 
  for (int num_cl = 0; num_cl < les_cl.size(); num_cl++)
    {
      const Cond_lim& la_cl = les_cl[num_cl];
      const Front_VF& la_front_dis = ref_cast(Front_VF, la_cl->frontiere_dis());
      int ndeb = la_front_dis.num_premiere_face();
      int nfin = ndeb + la_front_dis.nb_faces();
      IntVect faces_elem_loc(dimension + 1);
      int face_appartient_elem = 0;
 
      if (sub_type(Periodique, la_cl.valeur()))
        {
          const Periodique& la_cl_perio = ref_cast(Periodique, la_cl.valeur());
 
          for (fac = ndeb; fac < nfin; fac++)
            {
 
              double m;
              double petit = 1.e30;
 
              for (j = 0; j < 2; j++)
                {
                  num(j) = face_voisins(fac, j);
 
                  face_appartient_elem = 0;
 
                  for (i = 0; i < dimension + 1; i++)
                    {
                      faces_elem_loc[i] = elem_faces(num(j), i);
                      if (faces_elem_loc[i] == fac)
                        face_appartient_elem = 1;
                    }
 
                  if (face_appartient_elem == 1)
 
                    for (i = 0; i < dimension + 1; i++)
                      {
 
                        m = 0;
                        for (z = 0; z < dimension; z++)
                          {
                            m += carre(xv(faces_elem_loc[i], z) - xv(fac, z));
                          }
                        double temp = dd2(i, j) = sqrt(m);
                        if (temp > 1.e-24)
                          petit = std::min(petit, temp);
                      }
 
                  else
 
                    for (i = 0; i < dimension + 1; i++)
                      {
 
                        m = 0;
                        for (z = 0; z < dimension; z++)
                          {
                            if (z == la_cl_perio.direction_periodicite())
                              {
                                m += carre(std::fabs(xv(faces_elem_loc[i], z) - xv(fac, z)) - la_cl_perio.distance());
                              }
                            else
                              m += carre(xv(faces_elem_loc[i], z) - xv(fac, z));
                          }
                        double temp = dd2(i, j) = sqrt(m);
                        if (temp > 1.e-24)
                          petit = std::min(petit, temp);
                      }
                }
              r_(fac) = petit;
 
              if (petit < 0.)
                {
                  Cerr << "pb avec r(fac) negatif dans Modele_turbulence_hyd_LES_VEF" << finl;
                  Process::exit();
                }
 
              // On calcule la vitesse aux 2*dimension points qui entourent le point 0
              //  puis la fonction de structure d'abord en chaque point de calcul, puis sur la
              //  face comportant le point 0 .
 
              double F1 = 0;
              double F1b = 0;
 
              for (i = 0; i < 2; i++)
                {
                  num(i) = face_voisins(fac, i);
                  for (z = 0; z < dimension + 1; z++)
                    {
                      if (dd2(z, i) > 1e-24)
                        {
                          for (j = 0; j < dimension; j++)
                            {
                              dv(j) = (la_vitesse(elem_faces(num(i), z), j) - la_vitesse(fac, j)) * r_(fac) / dd2(z, i);
                              F1 += dv(j) * dv(j);
                            }
 
                          F1b += F1;
                          F1 = 0;
                        }
                      else
                        {
                          F1b += F1;
                          F1 = 0;
                        }
                    }
                }
              F2_(fac) = F1b / (2 * dimension);
            }
        }
      else
        {
          for (fac = ndeb; fac < nfin; fac++)
            {
              double m;
              double petit = 1e30;
              int num1;
              num1 = face_voisins(fac, 0);
              for (i = 0; i < dimension + 1; i++)
                {
                  m = 0;
                  for (z = 0; z < dimension; z++)
                    {
                      m += carre(xv(elem_faces(num1, i), z) - xv(fac, z));
                    }
                  double temp = d2(i) = sqrt(m);
                  if (temp > 1.e-24)
                    petit = std::min(petit, temp);
                }
              r_(fac) = petit;
              if (petit < 0.)
                {
                  Cerr << "pb avec r(fac) negatif dans Modele_turbulence_hyd_LES_VEF" << finl;
                  Process::exit();
                }
 
              double F1 = 0;
              double F1b = 0;
 
              for (z = 0; z < dimension + 1; z++)
                {
                  if (d2(z) > 1.e-24)
                    {
                      for (j = 0; j < dimension; j++)
                        {
                          dv(j) = (la_vitesse(elem_faces(num1, z), j) - la_vitesse(fac, j)) * r_(fac) / d2(z);
                          F1 += dv(j) * dv(j);
                        }
                      F1b += F1;
                      F1 = 0;
                    }
                  else
                    {
                      F1b += F1;
                      F1 = 0;
                    }
                }
              F2_(fac) = F1b / (dimension);
 
            }
        }
    } // fin traitement des bords
 
  //
  // On traite maintenant les faces restantes
  //
 
  for (; fac < nb_face; fac++)
    {
 
      // On commence par determiner la distance entre le point ou on calcule
      // et les points qui l'entourent
 
      double m;
      double petit = 1.e30;
 
      for (j = 0; j < 2; j++)
        {
          num(j) = face_voisins(fac, j);
          for (i = 0; i < dimension + 1; i++)
            {
              m = 0;
              for (z = 0; z < dimension; z++)
                {
                  m += carre(xv(elem_faces(num(j), i), z) - xv(fac, z));
                }
              double temp = dd2(i, j) = sqrt(m);
              if (temp > 1.e-24)
                petit = std::min(petit, temp);
            }
        }
 
      r_(fac) = petit;
      if (petit < 0.)
        {
          Cerr << "pb avec r(fac) negatif dans Modele_turbulence_hyd_LES_VEF" << finl;
          Process::exit();
        }
 
      // On calcule la vitesse aux 2*dimension points qui entourent le point 0
      //  puis la fonction de structure d'abord en chaque point de calcul, puis sur la
      //  face comportant le point 0 .
 
      double F1 = 0;
      double F1b = 0;
 
      for (i = 0; i < 2; i++)
        {
          num(i) = face_voisins(fac, i);
          for (z = 0; z < dimension + 1; z++)
            {
              if (dd2(z, i) > 1e-24)
                {
                  for (j = 0; j < dimension; j++)
                    {
                      dv(j) = (la_vitesse(elem_faces(num(i), z), j) - la_vitesse(fac, j)) * r_(fac) / dd2(z, i);
                      F1 += dv(j) * dv(j);
                    }
                  F1b += F1;
                  F1 = 0;
                }
              else
                {
                  F1b += F1;
                  F1 = 0;
                }
            }
 
        }
      F2_(fac) = F1b / (2 * dimension);
    }
}