Perte_Charge_Reguliere_VEF_P1NC.cpp

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#include <Perte_Charge_Reguliere_VEF_P1NC.h>
#include <Domaine_VEF.h>
#include <Sous_Domaine.h>
#include <Fluide_Incompressible.h>
#include <Equation_base.h>
#include <Probleme_base.h>
#include <Domaine.h>
#include <Champ_Uniforme.h>
#include <Matrice_Morse.h>
 
Implemente_instanciable(Perte_Charge_Reguliere_VEF_P1NC,"Perte_Charge_Reguliere_VEF_P1NC",Perte_Charge_VEF_Face);
 
 
 
//// printOn
//
 
Sortie& Perte_Charge_Reguliere_VEF_P1NC::printOn(Sortie& s ) const
{
  return s << que_suis_je() ;
}
 
 
//// readOn
//
 
Entree& Perte_Charge_Reguliere_VEF_P1NC::readOn(Entree& s )
{
  Cerr << " Perte_Charge_Reguliere_VEF_P1NC::readOn " << finl  ;
  Perte_Charge_Reguliere::lire_donnees(s);
  //Nom nom_sous_domaine;
  s >> nom_sous_domaine;
 
  return s ;
}
 
 
/////////////////////////////////////////////////////////////////////
//
//                    Implementation des fonctions
//
//               de la classe Perte_Charge_Reguliere_VEF_P1NC
//
////////////////////////////////////////////////////////////////////
 
void Perte_Charge_Reguliere_VEF_P1NC::remplir_num_faces(Nom& un_nom_sous_domaine)
{
  Cerr << " Perte_Charge_Reguliere_VEF_P1NC::remplir_num_faces " << finl;
  const Domaine& le_domaine = equation().probleme().domaine();
  const Domaine_VEF& domaine_VEF = le_dom_VEF.valeur();
 
  const IntTab& elem_faces = domaine_VEF.elem_faces();
  const IntTab& face_voisins = domaine_VEF.face_voisins();
  const DoubleVect& volumes = domaine_VEF.volumes();
  const Sous_Domaine& le_sous_domaine = le_domaine.ss_domaine(un_nom_sous_domaine);
  int nb_poly_ss_domaine = le_sous_domaine.nb_elem_tot();
 
  int nfe=domaine_VEF.domaine().nb_faces_elem();
  int nfac;
  int num_poly;
 
  num_faces.resize(nb_poly_ss_domaine*4);
  corr_front_ss.resize(nb_poly_ss_domaine*4);
 
  corr_front_ss = 1. ;
  nfac = 0;
 
  IntVect num_loc(domaine_VEF.nb_elem_tot());
  IntVect fait(domaine_VEF.nb_faces_tot());
  fait = -1;
  num_loc = -1;
 
  int num_poly_vois;
  int num_elem,num_face, face_loc;
 
  for (num_elem=0; num_elem<nb_poly_ss_domaine; num_elem++)
    {
      num_loc[le_sous_domaine(num_elem)] = num_elem;
    }
 
  for (num_elem=0; num_elem<nb_poly_ss_domaine; num_elem++)
    {
      num_poly = le_sous_domaine(num_elem);
      for  (face_loc = 0; face_loc < nfe ; face_loc++)
        {
          num_face =  elem_faces(num_poly,face_loc);
          if (fait(num_face) ==-1)
            {
              fait(num_face) = 1 ;
              num_faces[nfac++] = num_face;
              for (int i=0; i<2; i++ )
                {
                  num_poly_vois = face_voisins(num_face,i);
                  if (num_poly_vois != -1)
                    if (num_loc[num_poly_vois] == -1)  // le poly voisin n'est pas dans le sous_domaine
                      {
                        corr_front_ss[nfac-1] = volumes(num_poly)/(volumes(num_poly)+volumes(num_poly_vois)) ;
                      }
                }
            }
        }
    }
  num_faces.resize(nfac);
  corr_front_ss.resize(nfac);
}
 
DoubleTab& Perte_Charge_Reguliere_VEF_P1NC::ajouter(DoubleTab& resu) const
{
  //Cerr << " Perte_Charge_Reguliere_VEF_P1NC::ajouter " << finl;
  const Domaine_VEF& domaine_VEF = ref_cast(Domaine_VEF,equation().domaine_dis());
  const DoubleVect& volumes_entrelaces = domaine_VEF.volumes_entrelaces();
  const DoubleVect& porosite_face = equation().milieu().porosite_face();
  const DoubleTab& vit = la_vitesse->valeurs();
  const IntTab& face_voisins = domaine_VEF.face_voisins();
 
  double U_abs;
  double Cf,CK,Reynolds;
  int numfa,n0,n1;
 
  const Champ_Don_base& nu = le_fluide->viscosite_cinematique();
  const DoubleTab& visco = nu.valeurs();
  double d_visco=-1;
  int l_visco_unif=0;
 
  if (sub_type(Champ_Uniforme,nu))
    {
      const Champ_Uniforme& ch_nu = ref_cast(Champ_Uniforme,nu);
      d_visco = ch_nu.valeurs()(0,0);
      l_visco_unif = 1;
    }
 
 
  if (couronne_tube == 1)
    {
      Cerr << " PQ : 17/06/08 : Cette option a ete supprimee dans Perte_Charge_Reguliere_VEF_P1NC" << finl;
      Cerr << " Possibilite de retrouver la meme fonctionnalite a l'aide du mot cle : " << finl;
      Cerr << "  Perte_charge_anisotrope (voir doc) " << finl;
      exit();
    }
 
  int premiere_face_int=domaine_VEF.premiere_face_int();
  int direction = direction_perte_charge();
  int nb_faces = num_faces.size();
  for (int i=0; i<nb_faces; i++)
    {
      numfa = num_faces[i];
 
      if (!l_visco_unif)
        {
          n0 = face_voisins(numfa,0);
          n1 = face_voisins(numfa,1);
          if (numfa < premiere_face_int)
            {
              if (n0 != -1)
                d_visco = visco[n0];
              else
                d_visco = visco[n1];
            }
          else
            d_visco = 0.5*(visco[n0]+visco[n1]);
        }
      // GF La vitesse pour caluler le Rey ne depend pas de la porosite
      // et on utilise la norme
      U_abs=0;
      for (int j =0; j<dimension; j++ )
        U_abs += vit(numfa,j)*vit(numfa,j);
 
 
      U_abs = sqrt(U_abs) ;
 
 
      Reynolds = U_abs*D()/d_visco;
 
      if (!Cf_utilisateur)
        Cf = calculer_Cf_blasius(Reynolds);
      else
        Cf = CF();
 
      CK = -0.5*Cf/D();
 
      resu(numfa,direction) += CK*U_abs*vit(numfa,direction)*volumes_entrelaces(numfa)*porosite_face(numfa)*corr_front_ss(i);
 
    }
 
  return resu;
}
 
void  Perte_Charge_Reguliere_VEF_P1NC::contribuer_a_avec(const DoubleTab&, Matrice_Morse& matrice) const
{
  //Cerr << " Perte_Charge_Reguliere_VEF_P1NC::ajouter " << finl;
  const Domaine_VEF& domaine_VEF = ref_cast(Domaine_VEF,equation().domaine_dis());
  const DoubleVect& volumes_entrelaces = domaine_VEF.volumes_entrelaces();
  const DoubleVect& porosite_face = equation().milieu().porosite_face();
  const DoubleTab& vit = la_vitesse->valeurs();
  const IntTab& face_voisins = domaine_VEF.face_voisins();
 
  double U_abs;
  double Cf,CK,Reynolds;
  int numfa,n0,n1;
 
  const Champ_Don_base& nu = le_fluide->viscosite_cinematique();
  const DoubleTab& visco = nu.valeurs();
  double d_visco=-1;
  int l_visco_unif=0;
 
  if (sub_type(Champ_Uniforme,nu))
    {
      const Champ_Uniforme& ch_nu = ref_cast(Champ_Uniforme,nu);
      d_visco = ch_nu.valeurs()(0,0);
      l_visco_unif = 1;
    }
 
 
  if (couronne_tube == 1)
    {
      Cerr << " PQ : 17/06/08 : Cette option a ete supprimee dans Perte_Charge_Reguliere_VEF_P1NC" << finl;
      Cerr << " Possibilite de retrouver la meme fonctionnalite a l'aide du mot cle : " << finl;
      Cerr << "  Perte_charge_anisotrope (voir doc) " << finl;
      exit();
    }
 
  int premiere_face_int=domaine_VEF.premiere_face_int();
  int direction = direction_perte_charge();
  int nb_faces = num_faces.size();
  for (int i=0; i<nb_faces; i++)
    {
      numfa = num_faces[i];
 
      if (!l_visco_unif)
        {
          n0 = face_voisins(numfa,0);
          n1 = face_voisins(numfa,1);
          if (numfa < premiere_face_int)
            {
              if (n0 != -1)
                d_visco = visco[n0];
              else
                d_visco = visco[n1];
            }
          else
            d_visco = 0.5*(visco[n0]+visco[n1]);
        }
      // GF La vitesse pour caluler le Rey ne depend pas de la porosite
      // et on utilise la norme
      U_abs=0;
      for (int j =0; j<dimension; j++ )
        U_abs += vit(numfa,j)*vit(numfa,j);
 
 
      U_abs = sqrt(U_abs) ;
 
 
      Reynolds = U_abs*D()/d_visco;
 
      if (!Cf_utilisateur)
        Cf = calculer_Cf_blasius(Reynolds);
      else
        Cf = CF();
 
      CK = -0.5*Cf/D();
 
      //       resu(numfa,dir) += CK*U_abs*vit(numfa,dir)*volumes_entrelaces(numfa)*porosite_face(numfa)*corr_front_ss(i);
      int n0bis=numfa*dimension+direction;
      matrice.coef(n0bis,n0bis)-=CK*U_abs*volumes_entrelaces(numfa)*porosite_face(numfa)*corr_front_ss(i);
 
    }
 
 
}
 
void Perte_Charge_Reguliere_VEF_P1NC::completer()
{
  Source_base::completer();
  remplir_num_faces(nom_sous_domaine);
 
}