Op_Grad_VDF_Face.cpp

/****************************************************************************
* Copyright (c) 2026, CEA
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*****************************************************************************/
 
#include <Neumann_sortie_libre.h>
#include <Check_espace_virtuel.h>
#include <Dirichlet_homogene.h>
#include <Schema_Temps_base.h>
#include <Navier_Stokes_std.h>
#include <Op_Grad_VDF_Face.h>
#include <communications.h>
#include <Champ_Face_VDF.h>
#include <Pb_Multiphase.h>
#include <EcrFicPartage.h>
#include <Champ_P0_VDF.h>
#include <Matrix_tools.h>
#include <Domaine_Cl_VDF.h>
#include <Array_tools.h>
#include <Option_VDF.h>
#include <TRUSTTrav.h>
#include <Periodique.h>
#include <Dirichlet.h>
#include <Symetrie.h>
#include <Perf_counters.h>
 
Implemente_instanciable(Op_Grad_VDF_Face,"Op_Grad_VDF_Face",Op_Grad_VDF_Face_base);
 
Sortie& Op_Grad_VDF_Face::printOn(Sortie& s) const { return s << que_suis_je(); }
Entree& Op_Grad_VDF_Face::readOn(Entree& s) { return s; }
 
void Op_Grad_VDF_Face::calculer_flux_bords() const
{
  const Domaine_VDF& zvdf = le_dom_vdf.valeur();
  if (flux_bords_.size_array()==0) flux_bords_.resize(zvdf.nb_faces_bord(),dimension);
  flux_bords_ = 0.;
  const Domaine_Cl_VDF& zclvdf = la_zcl_vdf.valeur();
  const Navier_Stokes_std& eqn_hydr = ref_cast(Navier_Stokes_std,equation());
  const Champ_P0_VDF& la_pression_P0 = ref_cast(Champ_P0_VDF,eqn_hydr.pression_pa());
  const DoubleTab& pression_P0 = la_pression_P0.valeurs();
  const DoubleVect& face_surfaces = zvdf.face_surfaces();
  int nb_bord = zvdf.nb_front_Cl();
  for (int n_bord=0; n_bord<nb_bord; n_bord++)
    {
      const Cond_lim& la_cl = zclvdf.les_conditions_limites(n_bord);
      const Front_VF& le_bord = ref_cast(Front_VF,la_cl->frontiere_dis());
      int ndeb = le_bord.num_premiere_face();
      int nfin = ndeb + le_bord.nb_faces();
      for (int face=ndeb; face<nfin; face++)
        {
          int elem0 = face_voisins(face,0);
          int ori = orientation(face);
          double n0 = face_surfaces(face)*porosite_surf(face);
          if (elem0 != -1) flux_bords_(face,ori) = (pression_P0(elem0))*n0 ;
          else
            {
              int elem1 = face_voisins(face,1);
              flux_bords_(face,ori) = -(pression_P0(elem1))*n0 ;
            }
        } // fin for face
    } // fin for n_bord
}
 
int Op_Grad_VDF_Face::impr(Sortie& os) const
{
  const int impr_mom=le_dom_vdf->domaine().moments_a_imprimer();
  const int impr_sum=(le_dom_vdf->domaine().bords_a_imprimer_sum().est_vide() ? 0:1);
  const int impr_bord=(le_dom_vdf->domaine().bords_a_imprimer().est_vide() ? 0:1);
  const Schema_Temps_base& sch = equation().probleme().schema_temps();
  const Domaine_VDF& zvdf = le_dom_vdf.valeur();
  const Domaine_Cl_VDF& zclvdf = la_zcl_vdf.valeur();
  int face, ori;
  DoubleTab xgr;
  if (impr_mom) xgr = zvdf.calculer_xgr();
  // flux_bords contains the sum of flux on each boundary:
  DoubleTrav tab_flux_bords(3,zvdf.nb_front_Cl(),3);
  tab_flux_bords=0.;
  /*  flux_bord(k)          ->   flux_bords2(0,num_cl,k)
      flux_bord_perio1(k)   ->   flux_bords2(1,num_cl,k)
      flux_bord_perio2(k)   ->   flux_bords2(2,num_cl,k)
      moment(k)             ->   flux_bords2(3,num_cl,k) */
  int nb_bord =  zvdf.nb_front_Cl();
  for (int n_bord=0; n_bord<nb_bord; n_bord++)
    {
      const Cond_lim& la_cl = zclvdf.les_conditions_limites(n_bord);
      const Front_VF& le_bord = ref_cast(Front_VF,la_cl->frontiere_dis());
      int impr_boundary = (zvdf.domaine().bords_a_imprimer_sum().contient(le_bord.le_nom()) ? 1 : 0);
      int ndeb = le_bord.num_premiere_face();
      int nfin = ndeb + le_bord.nb_faces();
 
      for (face=ndeb; face<nfin; face++)
        {
          ori = orientation(face);
          tab_flux_bords(0, n_bord, ori) += flux_bords_(face,ori) ;
 
          if (dimension == 2)
            {
              if (impr_mom)
                tab_flux_bords(2, n_bord, 2) +=flux_bords_(face,1)*xgr(face,0)-flux_bords_(face,0)*xgr(face,1);
              if (impr_boundary)
                {
                  tab_flux_bords(1, n_bord, 0) += flux_bords_(face,0) ;
                  tab_flux_bords(1, n_bord, 1) += flux_bords_(face,1) ;
                }
            }
          else if (dimension == 3)
            {
              if (impr_mom)
                {
                  tab_flux_bords(2, n_bord, 0) +=flux_bords_(face,2)*xgr(face,1)-flux_bords_(face,1)*xgr(face,2);
                  tab_flux_bords(2, n_bord, 1) +=flux_bords_(face,0)*xgr(face,2)-flux_bords_(face,2)*xgr(face,0);
                  tab_flux_bords(2, n_bord, 2) +=flux_bords_(face,1)*xgr(face,0)-flux_bords_(face,0)*xgr(face,1);
                }
              if (impr_boundary)
                {
                  tab_flux_bords(1, n_bord, 0) += flux_bords_(face,0) ;
                  tab_flux_bords(1, n_bord, 1) += flux_bords_(face,1) ;
                  tab_flux_bords(1, n_bord, 2) += flux_bords_(face,2) ;
                }
            }
        } // fin for face
    } // fin for n_bord
 
  // Sum on all process:
  mp_sum_for_each_item(tab_flux_bords);
 
  // Write the boundary fluxes:
  if (je_suis_maitre())
    {
      ouvrir_fichier(Flux_grad,"",1);
      ouvrir_fichier(Flux_grad_moment,"moment",impr_mom);
      ouvrir_fichier(Flux_grad_sum,"sum",impr_sum);
      Flux_grad.add_col(sch.temps_courant());
      if (impr_mom) Flux_grad_moment.add_col(sch.temps_courant());
      if (impr_sum) Flux_grad_sum.add_col(sch.temps_courant());
      for (int n_bord=0; n_bord<nb_bord; n_bord++)
        {
          if (dimension == 2)
            {
              Flux_grad.add_col(tab_flux_bords(0, n_bord, 0));
              Flux_grad.add_col(tab_flux_bords(0, n_bord, 1));
              if (impr_sum)
                {
                  Flux_grad_sum.add_col(tab_flux_bords(1, n_bord, 0));
                  Flux_grad_sum.add_col(tab_flux_bords(1, n_bord, 1));
                }
              if (impr_mom) Flux_grad_moment.add_col(tab_flux_bords(2, n_bord, 2));
            }
 
          if (dimension == 3)
            {
              Flux_grad.add_col(tab_flux_bords(0, n_bord, 0));
              Flux_grad.add_col(tab_flux_bords(0, n_bord, 1));
              Flux_grad.add_col(tab_flux_bords(0, n_bord, 2));
              if (impr_sum)
                {
                  Flux_grad_sum.add_col(tab_flux_bords(1, n_bord, 0));
                  Flux_grad_sum.add_col(tab_flux_bords(1, n_bord, 1));
                  Flux_grad_sum.add_col(tab_flux_bords(1, n_bord, 2));
                }
              if (impr_mom)
                {
                  Flux_grad_moment.add_col(tab_flux_bords(2, n_bord, 0));
                  Flux_grad_moment.add_col(tab_flux_bords(2, n_bord, 1));
                  Flux_grad_moment.add_col(tab_flux_bords(2, n_bord, 2));
                }
            }
        }
      Flux_grad << finl;
      if (impr_sum) Flux_grad_sum << finl;
      if (impr_mom) Flux_grad_moment << finl;
    }
 
  const LIST(Nom)& Liste_bords_a_imprimer = zvdf.domaine().bords_a_imprimer();
  if (!Liste_bords_a_imprimer.est_vide())
    {
      EcrFicPartage Flux_grad_face;
      ouvrir_fichier_partage(Flux_grad_face,"",impr_bord);
      for (int n_bord=0; n_bord<nb_bord; n_bord++)
        {
          const Cond_lim& la_cl = zclvdf.les_conditions_limites(n_bord);
          const Front_VF& le_bord = ref_cast(Front_VF,la_cl->frontiere_dis());
          int ndeb = le_bord.num_premiere_face();
          int nfin = ndeb + le_bord.nb_faces();
          if (zvdf.domaine().bords_a_imprimer().contient(le_bord.le_nom()))
            {
              if (je_suis_maitre())
                {
                  Flux_grad_face << "# Force par face sur " << le_bord.le_nom() << " au temps ";
                  sch.imprimer_temps_courant(Flux_grad_face);
                  Flux_grad_face << " : " << finl;
                }
              for (face=ndeb; face<nfin; face++)
                {
                  Flux_grad_face << "# Face a x= " << zvdf.xv(face,0) << " y= " << zvdf.xv(face,1);
                  if (dimension==3) Flux_grad_face << " z= " << zvdf.xv(face,2);
                  Flux_grad_face << " : Fx= " << flux_bords_(face, 0) << " Fy= " << flux_bords_(face, 1);
                  if (dimension==3) Flux_grad_face << " Fz= " << flux_bords_(face, 2);
                  Flux_grad_face << finl;
                }
              Flux_grad_face.syncfile();
            }
        }
    }
  return 1;
}
 
void Op_Grad_VDF_Face::dimensionner_blocs(matrices_t matrices, const tabs_t& semi_impl) const
{
  if (!matrices.count("pression")) return; //rien a faire
 
  const Domaine_VDF& zvdf = le_dom_vdf.valeur();
  Stencil sten(0, 2);
 
  const Champ_Face_VDF& ch = ref_cast(Champ_Face_VDF, equation().inconnue());
  const DoubleTab& vit = ch.valeurs(), &press = le_champ_inco ? le_champ_inco->valeurs() : ref_cast(Navier_Stokes_std, equation()).pression().valeurs();
  const int N = vit.line_size(), M = press.line_size();
  Matrice_Morse *mat = matrices["pression"], mat2;
 
  for (int f = 0; f < zvdf.nb_faces(); f++)
    for (int i = 0, e; i < 2; i++)
      if ((e = zvdf.face_voisins(f, i)) >= 0)
        for (int n = 0, m = 0; n < N; n++, m += (M > 1))
          sten.append_line(N * f + n, M * e + m); /* bloc (face, elem )*/
 
  tableau_trier_retirer_doublons(sten);
  Matrix_tools::allocate_morse_matrix(vit.size_totale(), press.size_totale(), sten, mat2);
  mat->nb_colonnes() ? *mat += mat2 : *mat = mat2;
}
 
 
void Op_Grad_VDF_Face::ajouter_blocs(matrices_t matrices, DoubleTab& secmem, const tabs_t& semi_impl) const
{
  Matrice_Morse *mat = matrices.count("pression") ? matrices.at("pression") : nullptr;
  const DoubleTab& inco = semi_impl.count("pression") ? semi_impl.at("pression") : (le_champ_inco ? le_champ_inco->valeurs() : ref_cast(Navier_Stokes_std, equation()).pression().valeurs()),
                   *alp = sub_type(Pb_Multiphase, equation().probleme()) ? &ref_cast(Pb_Multiphase, equation().probleme()).equation_masse().inconnue().passe() : nullptr;
 
  assert_espace_virtuel_vect(inco);
 
  const Domaine_VDF& zvdf = le_dom_vdf.valeur();
  const Domaine_Cl_VDF& zclvdf = la_zcl_vdf.valeur();
  const DoubleVect& face_surfaces = zvdf.face_surfaces(), &vf = zvdf.volumes_entrelaces();
  const DoubleTab& vfd = zvdf.volumes_entrelaces_dir();
  const int M = inco.line_size(), N = secmem.line_size();
 
  // Boucle sur les bords pour traiter les conditions aux limites
  for (int n_bord = 0; n_bord < zvdf.nb_front_Cl(); n_bord++)
    {
      const Cond_lim& la_cl = zclvdf.les_conditions_limites(n_bord);
      const Front_VF& le_bord = ref_cast(Front_VF,la_cl->frontiere_dis());
      const int ndeb = le_bord.num_premiere_face(), nfin = ndeb + le_bord.nb_faces();
 
      if ( sub_type(Neumann_sortie_libre,la_cl.valeur()) )
        {
          const Neumann_sortie_libre& la_cl_typee = ref_cast(Neumann_sortie_libre, la_cl.valeur());
          for (int num_face = ndeb; num_face < nfin; num_face++)
            for (int n = 0, m = 0; n < N; n++, m += (M > 1))
              {
                const double P_imp = la_cl_typee.flux_impose(num_face-ndeb, m);
 
                const int n0 = face_voisins(num_face,0);
                if (n0 != -1)
                  {
                    const double coef = face_surfaces(num_face)*porosite_surf(num_face) * Option_VDF::coeff_P_neumann * (alp ? (*alp)(n0, n) : 1);
                    if(mat) (*mat)(N * num_face + n, M * n0 + m) -= coef;
                    secmem(num_face, n) -= coef * (P_imp - inco(n0, m));
                  }
                else
                  {
                    const int n1 = face_voisins(num_face,1);
                    const double coef = face_surfaces(num_face)*porosite_surf(num_face) * Option_VDF::coeff_P_neumann * (alp ? (*alp)(n1, n) : 1.0);
                    if(mat) (*mat)(N * num_face + n, M * n1 + m) += coef;
                    secmem(num_face, n) -= coef * (inco(n1, m) - P_imp);
                  }
              }
        }
      else if (sub_type(Periodique,la_cl.valeur())) // Correction periodicite
        {
          for (int f = ndeb; f < nfin; f++)
            for (int n = 0, m = 0; n < N; n++, m += (M > 1))
              {
                const int n0 = face_voisins(f, 0), n1 = face_voisins(f, 1);
                const double alpha_face = alp ? (vfd(f, 0) * (*alp)(n0, n) + vfd(f, 1) * (*alp)(n1, n)) / vf(f) : 1.0;
                const double coef = face_surfaces(f) * porosite_surf(f) * alpha_face;
                secmem(f, n) -= coef * (inco(n1, m) - inco(n0, m));
              }
        }
      else if (sub_type(Symetrie,la_cl.valeur())) { /* Do nothing */ }
      else if ( (sub_type(Dirichlet,la_cl.valeur())) || (sub_type(Dirichlet_homogene,la_cl.valeur())) ) { /* Do nothing */ }
    }
 
  // Boucle sur les faces internes
  for (int f = zvdf.premiere_face_int(); f < zvdf.nb_faces(); f++)
    for (int n = 0, m = 0; n < N; n++, m += (M > 1))
      {
        const int n0 = face_voisins(f, 0), n1 = face_voisins(f, 1);
        // XXX : Elie Saikali : attention : on code alpha grad(P) et pas grad(alpha.P) !! Sinon on manque des termes ... (voir avec Antoine sinon)
        const double alpha_face = alp ? (vfd(f, 0) * (*alp)(n0, n) + vfd(f, 1) * (*alp)(n1, n)) / vf(f) : 1.0;
        const double coef = face_surfaces(f) * porosite_surf(f) * alpha_face;
        if(mat)
          {
            (*mat)(N * f + n, M * n0 + m) -= coef;
            (*mat)(N * f + n, M * n1 + m) += coef;
          }
        secmem(f, n) -= coef * (inco(n1, m) - inco(n0, m));
      }
 
  secmem.echange_espace_virtuel();
}