Traitement_particulier_NS_Pression_VDF.cpp

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#include <Traitement_particulier_NS_Pression_VDF.h>
#include <Navier_Stokes_std.h>
#include <Milieu_base.h>
#include <Domaine_Cl_VDF.h>
#include <TRUSTTrav.h>
#include <Domaine_VDF.h>
 
Implemente_instanciable_sans_constructeur(Traitement_particulier_NS_Pression_VDF,"Traitement_particulier_NS_Pression_VDF",Traitement_particulier_NS_Pression);
 
Traitement_particulier_NS_Pression_VDF::Traitement_particulier_NS_Pression_VDF()
{
}
 
Sortie& Traitement_particulier_NS_Pression_VDF::printOn(Sortie& is) const
{
  return is;
}
 
Entree& Traitement_particulier_NS_Pression_VDF::readOn(Entree& is)
{
  return is;
}
 
inline int Traitement_particulier_NS_Pression_VDF::comprend_champ(const Motcle& mot) const
{
  if (mot == "Pression_porosite") return 1 ;
  return 0 ;
}
 
int Traitement_particulier_NS_Pression_VDF::a_pour_Champ_Fonc(const Motcle& mot,
                                                              OBS_PTR(Champ_base)& ch_ref) const
{
  if (mot == "Pression_porosite")
    {
      ch_ref = ch_p;
      return 1 ;
    }
  return 0 ;
}
 
Entree& Traitement_particulier_NS_Pression_VDF::lire(Entree& is)
{
  Motcle accouverte = "{" , accfermee = "}" ;
  Motcle motbidon, motlu;
 
  is >> motbidon ;
 
  Motcles les_mots(1);
  {
    les_mots[0] = "Pression_porosite";
  }
 
 
  if (motbidon == accouverte)
    {
      // is >> motlu;
 
      while(motlu != accfermee)
        {
          is >> motlu;
          int rang=les_mots.search(motlu);
          switch(rang)
            {
            case 0 :
              {
                Cerr << " Lire Pression_porosite " << finl;
                const Domaine_dis_base& zdis=mon_equation->inconnue().domaine_dis_base();
                const Domaine_VDF& domaine_VDF=ref_cast(Domaine_VDF, zdis);
                //                  const Probleme_base& pb = mon_equation->probleme();
                const int nb_elem = domaine_VDF.nb_elem() ;
 
                ch_p.associer_domaine_dis_base(zdis);
                ch_p.nommer("Pression_porosite");
                ch_p.fixer_nb_comp(1);
                ch_p.fixer_nb_valeurs_nodales(nb_elem);
                ch_p.fixer_unite("Pa.m3/kg");
                c_pression = 1 ;
                champs_compris_.ajoute_champ(ch_p);
                break ;
 
              }
            default :
              {
                if (motlu == accfermee)
                  {
                    break ;
                  }
                else
                  {
                    Cerr << "Erreur dans la lecture de Traitement_particulier_Brech_VEF" << finl;
                    Cerr << "Les mots cles possibles sont : calcul_flux ou Richardson " << finl;
                    Cerr << "Vous avez lu :" << motlu << finl;
                    exit();
                    break;
                  }
              }
            }
        }
      is >> motlu;
      if (motlu != accfermee)
        {
          Cerr << "Erreur dans la lecture de Traitement_particulier_NS_Brech_VEF 1 ";
          Cerr << "On attendait une } et pas " << motlu << finl;
          exit();
        }
    }
 
  return is;
}
 
 
void Traitement_particulier_NS_Pression_VDF::post_traitement_particulier()
{
  if (c_pression == 1 ) post_traitement_particulier_calcul_pression();
}
 
void Traitement_particulier_NS_Pression_VDF::post_traitement_particulier_calcul_pression()
{
  const Domaine_VDF& zvdf=ref_cast(Domaine_VDF, mon_equation->domaine_dis());
  const DoubleVect& porosite_face = mon_equation->milieu().porosite_face();
  int i;
  int nb_face = zvdf.nb_faces();
  OWN_PTR(Champ_Inc_base) gradient_P = mon_equation->grad_P();
 
  Operateur_Div divergence = mon_equation->operateur_divergence();
  Operateur_Grad gradient = mon_equation->operateur_gradient();
  SolveurSys solveur_pression_ = mon_equation->solveur_pression();
 
  DoubleTab& pression=mon_equation->pression().valeurs();
  DoubleTrav inc_pre(pression);
  DoubleTrav secmem(pression);
  gradient.calculer(mon_equation->pression().valeurs(),gradient_P->valeurs());
 
  //on veut BM-1Bt(spi*Pression)
  DoubleTab& grad=gradient_P->valeurs();
  mon_equation->solv_masse().appliquer(grad);
  DoubleTab& grad_temp = grad;
  for(i=0; i<nb_face; i++)
    {
      grad_temp(i) /=porosite_face(i);
    }
  divergence.calculer(grad_temp, secmem);
  secmem *= -1; // car div =-B
  solveur_pression_.resoudre_systeme(mon_equation->matrice_pression().valeur(),secmem, inc_pre);
  Cerr <<"inc_pre " << inc_pre << finl;
}