Coloc_discretisation.cpp

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#include <Coloc_discretisation.h>
#include <Domaine_Coloc.h>
#include <Equation_base.h>
#include <Probleme_base.h>
 
Implemente_instanciable(Coloc_discretisation, "Coloc", Discret_Thyd);
 
// XD coloc discretisation_base coloc INHERITS_BRACE Co-localised cell-center discretization
 
Entree& Coloc_discretisation::readOn(Entree& s) { return s;}
 
Sortie& Coloc_discretisation::printOn(Sortie& s) const { return s;}
 
void Coloc_discretisation::discretiser_champ(const Motcle& directive, const Domaine_dis_base& z, Nature_du_champ nature, const Noms& noms, const Noms& unites, int nb_comp, int nb_pas_dt,
                                             double temps, OWN_PTR(Champ_Inc_base)& champ, const Nom& sous_type) const
{
  Motcles motcles(6);
  motcles[0] = "vitesse";     // Standard choice for velocity
  motcles[1] = "pression";    // Standard choice for pressure
  motcles[2] = "temperature"; // Standard choice for temperature
  motcles[3] = "divergence_vitesse"; // Field type obtained by computing div v
  motcles[4] = "gradient_pression";  // Field type obtained by computing grad P
  motcles[5] = "champ_elem";    // Create a field at elements (type P0)
 
  Nom type_champ_vec("Champ_Vect_Elem_Coloc");
  Nom type_champ_elem("Champ_Elem_Coloc");
  Nom type;
  int default_nb_comp = 0; // Default value for the number of components
  int rang = motcles.search(directive);
 
  switch(rang)
    {
    case 0:
    case 4:
      type = type_champ_vec;
      default_nb_comp = 3;
      break;
    case 1:
    case 2:
    case 3:
    case 5:
      type = type_champ_elem;
      default_nb_comp = 1;
      break;
    default:
      assert(rang < 0);
      break;
    }
 
  if (directive == DEMANDE_DESCRIPTION)
    Cerr << "Coloc_discretisation : " << motcles;
 
  if (sous_type != NOM_VIDE)
    rang = verifie_sous_type(type, sous_type, directive);
 
  // If the directive was not understood (or if it is a description request),
  // call the parent class:
  if (rang < 0)
    {
      Discret_Thyd::discretiser_champ(directive, z, nature, noms, unites, nb_comp, nb_pas_dt, temps, champ);
      return;
    }
 
  int nb_ddl = 0;
  if (type.debute_par(type_champ_elem) || type.debute_par(type_champ_vec))
    nb_ddl = z.nb_elem() ;
  else
    assert(0);
 
  if (nb_comp < 0)
    nb_comp = default_nb_comp;
  assert(nb_comp > 0);
  creer_champ(champ, z, type, noms[0], unites[0], nb_comp, nb_ddl, nb_pas_dt, temps, directive, que_suis_je());
 
  if (nature == multi_scalaire)
    {
      champ->fixer_nature_du_champ(nature);
      champ->fixer_unites(unites);
      champ->fixer_noms_compo(noms);
    }
}
 
void Coloc_discretisation::discretiser_champ(const Motcle& directive, const Domaine_dis_base& z, Nature_du_champ nature, const Noms& noms, const Noms& unites, int nb_comp, double temps,
                                             OWN_PTR(Champ_Fonc_base)& champ) const
{
  discretiser_champ_fonc_don(directive, z, nature, noms, unites, nb_comp, temps, champ);
}
 
void Coloc_discretisation::discretiser_champ(const Motcle& directive, const Domaine_dis_base& z, Nature_du_champ nature, const Noms& noms, const Noms& unites, int nb_comp, double temps,
                                             OWN_PTR(Champ_Don_base)& champ) const
{
  discretiser_champ_fonc_don(directive, z, nature, noms, unites, nb_comp, temps, champ);
}
 
Nom Coloc_discretisation::get_name_of_type_for(const Nom& class_operateur, const Nom& type_operateur, const Equation_base& eqn, const OBS_PTR(Champ_base) &champ_sup) const
{
  if (eqn.probleme().que_suis_je() != "Pb_Euler")
    Process::exit("\nError with the chosen discretization !!!! \nThe colocalised discretization currently works only for the Euler problem !! Please select another one ... \n");
 
  Nom type;
  Nom type_ch = eqn.inconnue().que_suis_je();
  if (type_ch.debute_par("Champ_Elem"))  type_ch = "_Elem";
  else if (type_ch.debute_par("Champ_Vect")) type_ch = "_Vect";
 
  if (class_operateur == "Source")
    type = type_operateur + type_ch + "_" + que_suis_je();
  else if (class_operateur == "Solveur_Masse")
    type = Nom("Masse_") + que_suis_je() + type_ch;
  else if (class_operateur == "Operateur_Grad")
    type = Nom("Op_Grad_") + type_operateur + "_" + que_suis_je() + type_ch;
  else if (class_operateur == "Operateur_Diff")
    type = Nom("Op_Diff") + (type_operateur != "" ? "_" : "") + type_operateur + "_" + que_suis_je() + type_ch;
  else if (class_operateur == "Operateur_Conv")
    type = Nom("Op_Conv_") + type_operateur + "_" + que_suis_je() + type_ch;
  else if (class_operateur == "Operateur_NConserv")
    type = Nom("Op_NConserv_") + type_operateur + "_" + que_suis_je() + type_ch;
  else
    return Discret_Thyd::get_name_of_type_for(class_operateur, type_operateur, eqn);
 
  return type;
}
 
void Coloc_discretisation::discretiser_champ_fonc_don(const Motcle& directive, const Domaine_dis_base& z, Nature_du_champ nature, const Noms& noms, const Noms& unites, int nb_comp,
                                                      double temps, Objet_U& champ) const
{
// Two pointers for easy access to champ_don or champ_fonc, depending on the type of the champ object.
  OWN_PTR(Champ_Fonc_base) *champ_fonc = dynamic_cast<OWN_PTR(Champ_Fonc_base)*>(&champ);
  OWN_PTR(Champ_Don_base) *champ_don = dynamic_cast<OWN_PTR(Champ_Don_base)*>(&champ);
 
  Motcles motcles(6);
  motcles[0] = "pression";    // Standard choice for pressure
  motcles[1] = "temperature"; // Standard choice for temperature
  motcles[2] = "divergence_vitesse"; // Field type obtained by computing div v
  motcles[3] = "champ_elem";  // Create a field at elements (type P0)
  motcles[4] = "vitesse";     // Standard choice for velocity
  motcles[5] = "gradient_pression";  // Field type obtained by computing grad P
 
// The velocity field type depends on the element type:
  int default_nb_comp = 0,
      rang = motcles.search(directive);
 
  Nom type_champ_elem("Champ_Fonc_Elem_Coloc"),
      type_champ_vect("Champ_Fonc_Vect_Coloc"),
      type;
 
  switch(rang)
    {
    case 0:
    case 1:
    case 2:
    case 3:
      type = type_champ_elem;
      default_nb_comp = 1;
      break;
    case 4:
    case 5:
      type = type_champ_vect;
      default_nb_comp = 3;
      break;
    default:
      assert(rang < 0);
      break;
    }
 
  if (directive == DEMANDE_DESCRIPTION)
    Cerr << "Coloc_discretisation : " << motcles;
 
// If the directive was not understood (or if it is a description request),
// call the parent class:
  if (rang < 0)
    {
      if (champ_fonc)
        Discret_Thyd::discretiser_champ(directive, z, nature, noms, unites, nb_comp, temps, *champ_fonc);
      else
        Discret_Thyd::discretiser_champ(directive, z, nature, noms, unites, nb_comp, temps, *champ_don);
      return;
    }
 
// Compute the number of degrees of freedom
  int nb_ddl = 0;
  if ((type == "Champ_Fonc_Elem_Coloc") || (type == "Champ_Fonc_Vect_Coloc"))    // to be replaced by debute_par("Champ_Elem")
    nb_ddl = z.nb_elem();
  else
    assert(0);
 
// If it is a multi-scalar field, handle accordingly
  if (nb_comp < 0)
    nb_comp = default_nb_comp;
  if (champ_fonc)
    creer_champ(*champ_fonc, z, type, noms[0], unites[0], nb_comp, nb_ddl, temps, directive, que_suis_je());
  else
    creer_champ(*champ_don, z, type, noms[0], unites[0], nb_comp, nb_ddl, temps, directive, que_suis_je());
  if ((nature == multi_scalaire) && (champ_fonc))
    {
      champ_fonc->valeur().fixer_nature_du_champ(nature);
      champ_fonc->valeur().fixer_unites(unites);
      champ_fonc->valeur().fixer_noms_compo(noms);
    }
  else if ((nature == multi_scalaire) && (champ_don))
    {
      Cerr << "There is no field of type OWN_PTR(Champ_Don_base) with a multi_scalaire nature." << finl;
      exit();
    }
}