Op_Conv_Amont_old_VEF_Face.cpp

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#include <Op_Conv_Amont_old_VEF_Face.h>
#include <Neumann_sortie_libre.h>
#include <Hexaedre_VEF.h>
#include <Milieu_base.h>
#include <Periodique.h>
 
Implemente_instanciable(Op_Conv_Amont_old_VEF_Face,"Op_Conv_Amont_old_VEF_P1NC",Op_Conv_VEF_base);
// XD convection_amont_old convection_deriv amont_old NO_BRACE Only for VEF discretization, obsolete keyword, see amont.
 
Sortie& Op_Conv_Amont_old_VEF_Face::printOn(Sortie& s ) const
{
  return s << que_suis_je() ;
}
 
Entree& Op_Conv_Amont_old_VEF_Face::readOn(Entree& s )
{
  return s ;
}
 
 
//// convbis corresponds to the calculation of -1*convection_term
//
static void convbis(const double psc,const int num1,const int num2,
                    const DoubleTab& transporte,const int ncomp,
                    DoubleTab& resu, DoubleVect& fluent)
{
  int comp,amont;
  double flux;
 
  if (psc >= 0)
    {
      amont = num1;
      fluent[num2] += psc;
    }
  else
    {
      amont = num2;
      fluent[num1] -= psc;
    }
 
  for (comp=0; comp<ncomp; comp++)
    {
      flux = transporte(amont,comp)*psc;
      resu(num1,comp) -= flux;
      resu(num2,comp) += flux;
    }
}
static void convbisimplicite(const double psc,const int num1,const int num2,
                             const DoubleTab& transporte,const int ncomp,
                             Matrice_Morse& matrice)
{
  const auto& tab1 = matrice.get_set_tab1();
  const auto& tab2 = matrice.get_set_tab2();
  auto& coeff = matrice.get_set_coeff();
 
  for (int comp=0; comp<ncomp; comp++)
    {
      if (psc >=0)
        {
          for (auto k=tab1[num1*ncomp+comp]-1; k<tab1[num1*ncomp+comp+1]-1; k++)
            {
              if (tab2[k]-1== num1*ncomp+comp)
                coeff(k) += psc;
            }
          for (auto k=tab1[num2*ncomp+comp]-1; k<tab1[num2*ncomp+comp+1]-1; k++)
            {
              if (tab2[k]-1== num1*ncomp+comp)
                coeff(k) -= psc;
            }
        }
      else
        {
          for (auto k=tab1[num1*ncomp+comp]-1; k<tab1[num1*ncomp+comp+1]-1; k++)
            {
              if (tab2[k]-1== num2*ncomp+comp)
                coeff(k) += psc;
            }
          for (auto k=tab1[num2*ncomp+comp]-1; k<tab1[num2*ncomp+comp+1]-1; k++)
            {
              if (tab2[k]-1== num2*ncomp+comp)
                coeff(k) -= psc;
            }
        }
    }
}
 
 
DoubleTab& Op_Conv_Amont_old_VEF_Face::ajouter(const DoubleTab& transporte,
                                               DoubleTab& resu) const
{
  //  Cerr<<"Op_Conv_Amont_old_VEF_Face::ajouter"<<finl;
  const Domaine_Cl_VEF& domaine_Cl_VEF = la_zcl_vef.valeur();
  const Domaine_VEF& domaine_VEF = le_dom_vef.valeur();
  const Champ_Inc_base& la_vitesse=vitesse_.valeur();
  const IntTab& elem_faces = domaine_VEF.elem_faces();
  const DoubleTab& face_normales = domaine_VEF.face_normales();
  const auto& facette_normales = domaine_VEF.facette_normales();
  const DoubleVect& porosite_face = equation().milieu().porosite_face();
  const Domaine& domaine = domaine_VEF.domaine();
  const Elem_VEF_base& type_elem=domaine_VEF.type_elem();
  const int nfa7 = type_elem.nb_facette();
  const int nb_elem_tot = domaine_VEF.nb_elem_tot();
  const IntVect& rang_elem_non_std = domaine_VEF.rang_elem_non_std();
  const DoubleTab& normales_facettes_Cl = domaine_Cl_VEF.normales_facettes_Cl();
  int nfac = domaine.nb_faces_elem();
  int nsom = domaine.nb_som_elem();
  int nb_som_facette = domaine.type_elem()->nb_som_face();
  const Elem_geom_base& elem_geom = domaine.type_elem().valeur();
  if ( sub_type(Hexaedre_VEF,elem_geom))
    {
      nb_som_facette--;
    }
 
  // MODIF SB su 10/09/03
  // For the following 3 elements, there are as many vertices as faces
  // making up the geometric element.
  // Problem with hexahedra: 8 vertices and 6 faces, so using the array
  // face[i] no longer works.
  // The method retained to avoid computing velocity at vertices without
  // the shape functions is therefore not usable for hexahedra,
  // where the Face=>vertices array exists but not its inverse.
  // Too costly; porosity extension to hexahedra is not done for now.
  // ||(nom_elem=="Quadri_VEF")
  int istetra=0;
  Nom nom_elem=type_elem.que_suis_je();
  if ((nom_elem=="Tetra_VEF")||(nom_elem=="Tri_VEF"))
    istetra=1;
 
  // For the convection treatment, standard polyhedra (not "seeing" boundary conditions)
  // are distinguished from non-standard polyhedra (having at least one boundary face).
  // A standard polyhedron has n facets on which the convection scheme is applied.
  // For a non-standard polyhedron with Dirichlet boundary conditions, part of its
  // facets are carried by the boundary faces.
  // In short, for a polyhedron the convection treatment depends on the type
  // (triangle, tetrahedron ...) and the number of Dirichlet faces.
 
  double psc;
  int poly,face_adj,fa7,i,j,n_bord,num_face, rang ,itypcl, num10,num20,num_som;
  const int ncomp_ch_transporte = transporte.line_size();
 
  IntVect face(nfac);
  DoubleVect vs(dimension);
  DoubleVect vc(dimension);
  DoubleTab vsom(nsom,dimension);
  DoubleVect cc(dimension);
 
  // Reset the array used for
  // computing the stability time step
  fluent_ = 0;
 
  // Special treatment for periodic faces
 
  int nb_faces_perio = 0;
  // Loop to count the number of periodic faces
  for (n_bord=0; n_bord<domaine_VEF.nb_front_Cl(); n_bord++)
    {
      const Cond_lim& la_cl = domaine_Cl_VEF.les_conditions_limites(n_bord);
      if (sub_type(Periodique,la_cl.valeur()))
        {
          const Front_VF& le_bord = ref_cast(Front_VF,la_cl->frontiere_dis());
          nb_faces_perio += le_bord.nb_faces();
        }
    }
 
  DoubleTab tab(nb_faces_perio,ncomp_ch_transporte);
  // Loop to fill tab
  nb_faces_perio=0;
  for (n_bord=0; n_bord<domaine_VEF.nb_front_Cl(); n_bord++)
    {
      const Cond_lim& la_cl = domaine_Cl_VEF.les_conditions_limites(n_bord);
      if (sub_type(Periodique,la_cl.valeur()))
        {
          //          const Periodique& la_cl_perio = ref_cast(Periodique, la_cl.valeur());
          const Front_VF& le_bord = ref_cast(Front_VF,la_cl->frontiere_dis());
          int num1 = le_bord.num_premiere_face();
          int num2 = num1 + le_bord.nb_faces();
          for (num_face=num1; num_face<num2; num_face++)
            {
              for (int comp=0; comp<ncomp_ch_transporte; comp++)
                tab(nb_faces_perio,comp) = resu(num_face,comp);
              nb_faces_perio++;
            }
        }
    }
 
  IntVect compteur(nsom);
  compteur = 0;
  vsom=0.;
 
  // Non-standard polyhedra are grouped into 2 sets in Domaine_VEF:
  //  - boundary and joint polyhedra
  //  - boundary and non-joint polyhedra
  // Polyhedra are processed in the order in which they appear in the domain
 
  // loop over polyhedra
  const IntTab& KEL=type_elem.KEL();
  for (poly=0; poly<nb_elem_tot; poly++)
    {
      rang = rang_elem_non_std(poly);
      if (rang==-1)
        itypcl=0;
      else
        itypcl=domaine_Cl_VEF.type_elem_Cl(rang);
 
      // compute the face indices of the polyhedron
      for (face_adj=0; face_adj<nfac; face_adj++)
        face[face_adj]= elem_faces(poly,face_adj);
      // keep this part
      for (j=0; j<dimension; j++)
        {
          vs[j] = la_vitesse.valeurs()(face[0],j)*porosite_face(face[0]);
          for (i=1; i<nfac; i++)
            vs[j]+= la_vitesse.valeurs()(face[i],j)*porosite_face(face[i]);
        }
 
      // compute velocity at the vertices of the polyhedra
      // int ncomp;
      if (istetra==1)
        {
          for (j=0; j<nsom; j++)
            for (int ncomp=0; ncomp<Objet_U::dimension; ncomp++)
              vsom(j,ncomp) =vs[ncomp] - Objet_U::dimension*la_vitesse.valeurs()(face[j],ncomp)*porosite_face(face[j]);
        }
      else
        {
          // to be valid with hexahedra
          // Use the shape functions implemented in class Champs_P1_impl or Champs_Q1_impl
          // int ncomp;
          for (j=0; j<nsom; j++)
            {
              num_som = domaine.sommet_elem(poly,j);
              for (int ncomp=0; ncomp<dimension; ncomp++)
                vsom(j,ncomp) = la_vitesse.valeur_a_sommet_compo(num_som,poly,ncomp);
            }
        }
 
      type_elem.calcul_vc(face,vc,vs,vsom,vitesse(),itypcl,porosite_face);
 
      // Loop over facets of the polyhedron
      for (fa7=0; fa7<nfa7; fa7++)
        {
          if (rang==-1)
            for (i=0; i<dimension; i++)
              cc[i] = facette_normales(poly,fa7,i);
          else
            for (i=0; i<dimension; i++)
              cc[i] = normales_facettes_Cl(rang,fa7,i);
 
          // Apply the convection scheme to each vertex of the facet
          // Process the vertex/vertices that are also vertices of the polyhedron
          for (i=0; i<nb_som_facette-1; i++)
            {
              psc =0;
              for (j=0; j<dimension; j++)
                psc+= vsom(KEL(i+2,fa7),j)*cc[j];
 
              // Loop over facets of the polyhedron
              psc /= nb_som_facette;
              num10 = face[KEL(0,fa7)];
              num20 = face[KEL(1,fa7)];
              //psc *= (porosite_face(num1)+porosite_face(num2))/2. ;
 
              convbis(psc,num10,num20,transporte,ncomp_ch_transporte,resu,fluent_);
            }
          // Process the vertex coinciding with the centre of gravity of the polyhedron
          psc=0;
          for (j=0; j<dimension; j++)
            psc += vc[j]*cc[j];
          psc /= nb_som_facette;
          num10 = face[KEL(0,fa7)];
          num20 = face[KEL(1,fa7)];
          //psc *= (porosite_face(num1)+porosite_face(num2))/2. ;
 
          convbis(psc,num10,num20,transporte,ncomp_ch_transporte,resu,fluent_);
        }
 
    } // end of loop
  //   if(Process::is_sequential())
  //     Process::Journal()<<"OpVEFFaAmont ap interne resu[8]="<<resu(8,0)<<","<<resu(8,1)<<finl;
  //   if((Process::nproc()==2)&&(Process::me()==0))
  //     Process::Journal()<<"OpVEFFaAmont ap interne resu[4]="<<resu(4,0)<<","<<resu(4,1)<<finl;
 
  int voisine;
  nb_faces_perio = 0;
  double diff1,diff2;
 
  // Dimensioning the array of convective fluxes at the boundary
  // of the computational domain
  DoubleTab& flux_b = flux_bords_;
  flux_b.resize(domaine_VEF.nb_faces_bord(),ncomp_ch_transporte);
  flux_b = 0.;
 
  // Loop over the boundaries to process the boundary conditions
  // a convection term is included for Neumann_sortie_libre boundary conditions only
 
  for (n_bord=0; n_bord<domaine_VEF.nb_front_Cl(); n_bord++)
    {
 
      const Cond_lim& la_cl = domaine_Cl_VEF.les_conditions_limites(n_bord);
 
      if (sub_type(Neumann_sortie_libre,la_cl.valeur()))
        {
          const Neumann_sortie_libre& la_sortie_libre = ref_cast(Neumann_sortie_libre, la_cl.valeur());
          const Front_VF& le_bord = ref_cast(Front_VF,la_cl->frontiere_dis());
          int num1 = le_bord.num_premiere_face();
          int num2 = num1 + le_bord.nb_faces();
          for (num_face=num1; num_face<num2; num_face++)
            {
              psc =0;
              for (i=0; i<dimension; i++)
                psc += la_vitesse.valeurs()(num_face,i)*face_normales(num_face,i)*porosite_face(num_face);
              if (psc>0)
                {
                  for (i=0; i<ncomp_ch_transporte; i++)
                    {
                      resu(num_face,i) -= psc*transporte(num_face,i);
                      flux_b(num_face,i) -= psc*transporte(num_face,i);
                    }
                }
              else
                {
                  for (i=0; i<ncomp_ch_transporte; i++)
                    {
                      resu(num_face,i) -= psc*la_sortie_libre.val_ext(num_face-num1,i);
                      flux_b(num_face,i) -= psc*la_sortie_libre.val_ext(num_face-num1,i);
                    }
                  fluent_[num_face] -= psc;
                }
            }
        }
      else if (sub_type(Periodique,la_cl.valeur()))
        {
          const Periodique& la_cl_perio = ref_cast(Periodique, la_cl.valeur());
          const Front_VF& le_bord = ref_cast(Front_VF,la_cl->frontiere_dis());
          int num1 = le_bord.num_premiere_face(), num2 = num1 + le_bord.nb_faces();
          IntVect fait(le_bord.nb_faces());
          fait = 0;
          for (num_face=num1; num_face<num2; num_face++)
            {
              if (fait[num_face-num1] == 0)
                {
                  voisine = la_cl_perio.face_associee(num_face-num1) + num1;
                  for (int comp=0; comp<ncomp_ch_transporte; comp++)
                    {
                      diff1 = resu(num_face,comp)-tab(nb_faces_perio,comp);
                      diff2 = resu(voisine,comp)-tab(nb_faces_perio+voisine-num_face,comp);
                      resu(voisine,comp)  += diff1;
                      resu(num_face,comp) += diff2;
                      flux_b(voisine,comp) += diff1;
                      flux_b(num_face,comp) += diff2;
                    }
 
                  fait[num_face-num1]= 1;
                  fait[voisine-num1] = 1;
                }
              nb_faces_perio++;
            }
        }
    }
  modifier_flux(*this);
  return resu;
 
}
 
 
void Op_Conv_Amont_old_VEF_Face::ajouter_contribution(const DoubleTab& transporte, Matrice_Morse& matrice ) const
{
  const Domaine_Cl_VEF& domaine_Cl_VEF = la_zcl_vef.valeur();
  const Domaine_VEF& domaine_VEF = le_dom_vef.valeur();
  const Champ_Inc_base& la_vitesse=vitesse_.valeur();
  const IntTab& elem_faces = domaine_VEF.elem_faces();
  const DoubleTab& face_normales = domaine_VEF.face_normales();
  const auto& facette_normales = domaine_VEF.facette_normales();
  const Domaine& domaine = domaine_VEF.domaine();
  const Elem_VEF_base& type_elem = domaine_VEF.type_elem();
  const int nfa7 = type_elem.nb_facette();
  const int nb_elem_tot = domaine_VEF.nb_elem_tot();
  const IntVect& rang_elem_non_std = domaine_VEF.rang_elem_non_std();
  const DoubleVect& porosite_face = equation().milieu().porosite_face();
  const DoubleTab& normales_facettes_Cl = domaine_Cl_VEF.normales_facettes_Cl();
  int nfac = domaine.nb_faces_elem(), nsom = domaine.nb_som_elem(), nb_som_facette = domaine.type_elem()->nb_som_face();
 
  // For the convection treatment, standard polyhedra (not "seeing" boundary conditions)
  // are distinguished from non-standard polyhedra (having at least one boundary face).
  // A standard polyhedron has n facets on which the convection scheme is applied.
  // For a non-standard polyhedron with Dirichlet boundary conditions, part of its
  // facets are carried by the boundary faces.
  // In short, for a polyhedron the convection treatment depends on the type
  // (triangle, tetrahedron ...) and the number of Dirichlet faces.
 
  double psc;
  //DoubleTab pscl=0;
  int poly,face_adj,fa7,i,j,n_bord, num_face, rang ,itypcl, num10,num20,num_som;
  const int ncomp_ch_transporte = transporte.line_size();
 
  IntVect face(nfac);
  DoubleVect vs(dimension);
  DoubleVect vc(dimension);
  DoubleTab vsom(nsom,dimension);
  DoubleVect cc(dimension);
  auto& tab1 = matrice.get_set_tab1();
  auto& tab2 = matrice.get_set_tab2();
  auto& coeff = matrice.get_set_coeff();
 
  // Special treatment for periodic faces
  int voisine, nb_faces_perio = 0;
  double diff1,diff2;
 
  // Loop to count the number of periodic faces
  for (n_bord=0; n_bord<domaine_VEF.nb_front_Cl(); n_bord++)
    {
      const Cond_lim& la_cl = domaine_Cl_VEF.les_conditions_limites(n_bord);
      if (sub_type(Periodique,la_cl.valeur()))
        {
          const Front_VF& le_bord = ref_cast(Front_VF,la_cl->frontiere_dis());
          nb_faces_perio += le_bord.nb_faces();
        }
    }
 
  DoubleTab tab(nb_faces_perio,ncomp_ch_transporte);
 
  // Loop to fill tab
  nb_faces_perio=0;
  for (n_bord=0; n_bord<domaine_VEF.nb_front_Cl(); n_bord++)
    {
      const Cond_lim& la_cl = domaine_Cl_VEF.les_conditions_limites(n_bord);
      if (sub_type(Periodique,la_cl.valeur()))
        {
          const Front_VF& le_bord = ref_cast(Front_VF,la_cl->frontiere_dis());
          int num1 = le_bord.num_premiere_face();
          int num2 = num1 + le_bord.nb_faces();
          for (num_face=num1; num_face<num2; num_face++)
            {
              for (int comp=0; comp<ncomp_ch_transporte; comp++)
                tab(nb_faces_perio,comp) = coeff(num_face*ncomp_ch_transporte+comp);
              nb_faces_perio++;
            }
        }
    }
 
  // Non-standard polyhedra are grouped into 2 sets in Domaine_VEF:
  //  - boundary and joint polyhedra
  //  - boundary and non-joint polyhedra
  // Polyhedra are processed in the order in which they appear in the domain
 
  // loop over polyhedra
  const IntTab& KEL=type_elem.KEL();
  for (poly=0; poly<nb_elem_tot; poly++)
    {
 
      rang = rang_elem_non_std(poly);
      if (rang==-1)
        itypcl=0;
      else
        itypcl=domaine_Cl_VEF.type_elem_Cl(rang);
 
      // compute the face indices of the polyhedron
      for (face_adj=0; face_adj<nfac; face_adj++)
        face[face_adj]= elem_faces(poly,face_adj);
 
      // compute velocity at the vertices of the polyhedra
      for (j=0; j<dimension; j++)
        {
          vs[j] = la_vitesse.valeurs()(face[0],j);
          for (i=1; i<nfac; i++)
            vs[j]+= la_vitesse.valeurs()(face[i],j);
        }
 
      // compute velocity at the vertices of the polyhedra
      // Use the shape functions implemented in class Champs_P1_impl or Champs_Q1_impl
 
      int ncomp;
      for (j=0; j<nsom; j++)
        {
          num_som = domaine.sommet_elem(poly,j);
          for(int kk=0; kk<Objet_U::dimension; kk++)
            for (ncomp=0; ncomp<dimension; ncomp++)
              vsom(j,ncomp) = la_vitesse.valeur_a_sommet_compo(num_som,poly,ncomp);
        }
 
      // compute vc
      type_elem.calcul_vc(face,vc,vs,vsom,vitesse(),itypcl,porosite_face);
 
      // Loop over facets of the polyhedron
 
      for (fa7=0; fa7<nfa7; fa7++)
        {
          if (rang==-1)
            for (i=0; i<dimension; i++)
              cc[i] = facette_normales(poly,fa7,i);
          else
            for (i=0; i<dimension; i++)
              cc[i] = normales_facettes_Cl(rang,fa7,i);
 
          // Apply the convection scheme to each vertex of the facet
          // Process the vertex/vertices that are also vertices of the polyhedron
 
          for (i=0; i<nb_som_facette-1; i++)
            {
              psc =0;
 
              /////////////////////////////////////////////////////////////////////
              // Fill the coefficient array corresponding to convbis
              /////////////////////////////////////////////////////////////////////
 
              for (j=0; j<dimension; j++)
                psc += vsom(KEL(i+2,fa7),j)*cc[j];
              psc/= nb_som_facette;
              num10 = face[KEL(0,fa7)];
              num20 = face[KEL(1,fa7)];
              convbisimplicite(psc,num10,num20,transporte,ncomp_ch_transporte,matrice);
 
            } // end of loop over facet vertices.
 
          // process the vertex coinciding with the centre of gravity of the polyhedron
          psc=0;
          for (j=0; j<dimension; j++)
            psc += vc[j]*cc[j];
          psc /= nb_som_facette;
          num10 = face[KEL(0,fa7)];
          num20 = face[KEL(1,fa7)];
          convbisimplicite(psc,num10,num20,transporte,ncomp_ch_transporte,matrice);
 
        } // end of loop over facets.
 
    } // end of loop over polyhedra.
 
  // Loop over the boundaries to process the boundary conditions
  // a convection term is included for Neumann_sortie_libre boundary conditions only
 
  for (n_bord=0; n_bord<domaine_VEF.nb_front_Cl(); n_bord++)
    {
      const Cond_lim& la_cl = domaine_Cl_VEF.les_conditions_limites(n_bord);
      if (sub_type(Neumann_sortie_libre,la_cl.valeur()))
        {
          //        const Neumann_sortie_libre& la_sortie_libre = ref_cast(Neumann_sortie_libre, la_cl.valeur());
          const Front_VF& le_bord = ref_cast(Front_VF,la_cl->frontiere_dis());
          int num1 = le_bord.num_premiere_face();
          int num2 = num1 + le_bord.nb_faces();
          for (num_face=num1; num_face<num2; num_face++)
            {
              psc =0;
              for (i=0; i<dimension; i++)
                psc += la_vitesse.valeurs()(num_face,i)*face_normales(num_face,i);
              if (psc>0)
                {
                  for (j=0; j<ncomp_ch_transporte; j++)
                    {
                      for (auto k=tab1[num_face*ncomp_ch_transporte+j]-1; k<tab1[num_face*ncomp_ch_transporte+j+1]-1; k++)
                        {
                          if (tab2[k]-1==num_face*ncomp_ch_transporte+j)
                            coeff(k) += psc;
                        }
                    }
                }
              else /*psc < 0 */
                {
                  for (j=0; j<ncomp_ch_transporte; j++)
                    {
                      for (auto k=tab1[num_face*ncomp_ch_transporte+j]-1; k<tab1[num_face*ncomp_ch_transporte+j+1]-1; k++)
                        {
                          if (tab2[k]-1==num_face*ncomp_ch_transporte+j)
                            coeff(k) += 0;
                        }
                    }
                }
            }
        }
      else if (sub_type(Periodique,la_cl.valeur()))
        {
          const Periodique& la_cl_perio = ref_cast(Periodique, la_cl.valeur());
          const Front_VF& le_bord = ref_cast(Front_VF,la_cl->frontiere_dis());
          int num1 = le_bord.num_premiere_face();
          int num2 = num1 + le_bord.nb_faces();
          IntVect fait(le_bord.nb_faces());
          fait = 0;
          for (num_face=num1; num_face<num2; num_face++)
            {
              if (fait[num_face-num1] == 0)
                {
                  voisine = la_cl_perio.face_associee(num_face-num1) + num1;
                  for (int comp=0; comp<ncomp_ch_transporte; comp++)
                    {
                      diff1 = -1*tab(nb_faces_perio,comp);
                      diff2 = -1*tab(nb_faces_perio+voisine-num_face,comp);
 
                      for (auto k=tab1[num_face*ncomp_ch_transporte+comp]-1; k<tab1[num_face*ncomp_ch_transporte+1+comp]-1; k++)
                        if (tab2[k]-1==num_face*ncomp_ch_transporte+comp)
                          coeff(k) += diff2;
 
                      for (auto k=tab1[voisine*ncomp_ch_transporte+comp]-1; k<tab1[voisine*ncomp_ch_transporte+1+comp]-1; k++)
                        if (tab2[k]-1==voisine*ncomp_ch_transporte+comp)
                          coeff(k) += diff1;
                    }
 
                  fait[num_face-num1]= 1;
                  fait[voisine-num1] = 1;
                }
              nb_faces_perio++;
            }
        }
    }
}
 
void Op_Conv_Amont_old_VEF_Face::contribue_au_second_membre(DoubleTab& resu ) const
{
  const Domaine_Cl_VEF& domaine_Cl_VEF = la_zcl_vef.valeur();
  const Domaine_VEF& domaine_VEF = le_dom_vef.valeur();
  const Champ_Inc_base& la_vitesse=vitesse_.valeur();
  const DoubleTab& face_normales = domaine_VEF.face_normales();
  //const Domaine& domaine = domaine_VEF.domaine();
  //int nfac = domaine.nb_faces_elem();
  double psc;
  int i,n_bord, num_face;
  const int ncomp = resu.line_size();
 
  //IntVect face(nfac);
 
  // Special treatment for periodic faces
  int voisine, nb_faces_perio = 0;
  double diff1,diff2;
 
  // Loop to count the number of periodic faces
  for (n_bord=0; n_bord<domaine_VEF.nb_front_Cl(); n_bord++)
    {
      const Cond_lim& la_cl = domaine_Cl_VEF.les_conditions_limites(n_bord);
      if (sub_type(Periodique,la_cl.valeur()))
        {
          const Front_VF& le_bord = ref_cast(Front_VF,la_cl->frontiere_dis());
          nb_faces_perio += le_bord.nb_faces();
        }
    }
 
  DoubleTab tab(nb_faces_perio,ncomp);
  // Loop to fill tab
  nb_faces_perio=0;
  for (n_bord=0; n_bord<domaine_VEF.nb_front_Cl(); n_bord++)
    {
      const Cond_lim& la_cl = domaine_Cl_VEF.les_conditions_limites(n_bord);
      if (sub_type(Periodique,la_cl.valeur()))
        {
          const Front_VF& le_bord = ref_cast(Front_VF,la_cl->frontiere_dis());
          int num1 = le_bord.num_premiere_face();
          int num2 = num1 + le_bord.nb_faces();
          for (num_face=num1; num_face<num2; num_face++)
            {
              for (int comp=0; comp<ncomp; comp++)
                tab(nb_faces_perio,comp) = resu(num_face,comp);
 
              nb_faces_perio++;
            }
        }
    }
  // Loop over the boundaries to process the boundary conditions
  // a convection term is included for Neumann_sortie_libre boundary conditions only
 
  for (n_bord=0; n_bord<domaine_VEF.nb_front_Cl(); n_bord++)
    {
      const Cond_lim& la_cl = domaine_Cl_VEF.les_conditions_limites(n_bord);
      if (sub_type(Neumann_sortie_libre,la_cl.valeur()))
        {
          const Neumann_sortie_libre& la_sortie_libre = ref_cast(Neumann_sortie_libre, la_cl.valeur());
          const Front_VF& le_bord = ref_cast(Front_VF,la_cl->frontiere_dis());
          int num1 = le_bord.num_premiere_face();
          int num2 = num1 + le_bord.nb_faces();
          for (num_face=num1; num_face<num2; num_face++)
            {
              psc =0;
              for (i=0; i<dimension; i++)
                psc += la_vitesse.valeurs()(num_face,i)*face_normales(num_face,i);
              if (psc>0)
                for (i=0; i<ncomp; i++)
                  resu(num_face,i) += 0;
              else
                for (i=0; i<ncomp; i++)
                  resu(num_face,i) -= psc*la_sortie_libre.val_ext(num_face-num1,i);
            }
        }
      else if (sub_type(Periodique,la_cl.valeur()))
        {
          const Periodique& la_cl_perio = ref_cast(Periodique, la_cl.valeur());
          const Front_VF& le_bord = ref_cast(Front_VF,la_cl->frontiere_dis());
          int num1 = le_bord.num_premiere_face();
          int num2 = num1 + le_bord.nb_faces();
          IntVect fait(le_bord.nb_faces());
          fait = 0;
          for (num_face=num1; num_face<num2; num_face++)
            {
              if (fait[num_face-num1] == 0)
                {
                  voisine = la_cl_perio.face_associee(num_face-num1) + num1;
                  for (int comp=0; comp<ncomp; comp++)
                    {
                      diff1 = resu(num_face,comp)-tab(nb_faces_perio,comp);
                      diff2 = resu(voisine,comp)-tab(nb_faces_perio+voisine-num_face,comp);
                      resu(voisine,comp)  += diff1;
                      resu(num_face,comp) += diff2;
                    }
 
                  fait[num_face-num1]= 1;
                  fait[voisine-num1] = 1;
                }
              nb_faces_perio++;
            }
        }
    }
}