Solveur_U_P.cpp

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#include <Neumann_sortie_libre.h>
#include <MD_Vector_composite.h>
#include <Discretisation_base.h>
#include <Matrice_Diagonale.h>
#include <Navier_Stokes_std.h>
#include <Schema_Temps_base.h>
#include <Assembleur_base.h>
#include <MD_Vector_tools.h>
#include <TRUSTTab_parts.h>
#include <Probleme_base.h>
#include <MD_Vector_std.h>
#include <Matrice_Bloc.h>
#include <Solveur_U_P.h>
#include <Dirichlet.h>
#include <TRUSTTrav.h>
#include <Front_VF.h>
#include <EChaine.h>
#include <Debog.h>
 
Implemente_instanciable(Solveur_U_P,"Solveur_U_P",Simple);
// XD solveur_u_p simple solveur_u_p BRACE similar to simple.
 
 
Sortie& Solveur_U_P::printOn(Sortie& os ) const { return Simple::printOn(os); }
 
Entree& Solveur_U_P::readOn(Entree& is ) { return Simple::readOn(is); }
 
//Entree : Uk-1 ; Pk-1
//Sortie Uk ; Pk
//k designe une iteration
void Solveur_U_P::iterer_NS(Equation_base& eqn,DoubleTab& current,DoubleTab& pression,double dt,Matrice_Morse& matrice_inut,double seuil_resol,DoubleTrav& secmem,int nb_ite,int& converge, int& ok)
{
  if (eqn.probleme().is_dilatable())
    {
      Cerr<<" Solveur_U_P cannot be used with a quasi-compressible fluid."<<finl;
      Cerr<<__FILE__<<(int)__LINE__<<" non code" <<finl;
      Process::exit();
    }
 
  const bool is_PolyMAC_CDO = eqn.discretisation().is_PolyMAC_CDO();
  Parametre_implicite& param = get_and_set_parametre_implicite(eqn);
  SolveurSys& le_solveur_ = param.solveur();
 
  Navier_Stokes_std& eqnNS = ref_cast(Navier_Stokes_std,eqn);
  eqnNS.reassembler_pression_si_necessaire();
 
  /* MD_Vector (vitesse, pression) */
  MD_Vector md_UP;
  MD_Vector_composite mds;
  DoubleTab_parts ppart(pression); //dans PolyMAC_CDO, pression contient (p, v) -> on doit ignorer la 2e partie...
 
  mds.add_part(current.get_md_vector(), current.line_size());
  if (is_PolyMAC_CDO)
    mds.add_part(ppart[0].get_md_vector(), ppart[0].line_size());
  else
    mds.add_part(pression.get_md_vector(), pression.line_size());
 
  md_UP.copy(mds);
 
  DoubleTab Inconnues,residu;
  MD_Vector_tools::creer_tableau_distribue(md_UP, Inconnues);
  MD_Vector_tools::creer_tableau_distribue(md_UP, residu);
 
  DoubleTab_parts residu_parts(residu);
  DoubleTab_parts Inconnues_parts(Inconnues);
 
  Inconnues_parts[0] = current;
  Inconnues_parts[1] = is_PolyMAC_CDO ? ppart[0] : pression;
 
  Matrice_Bloc Matrice_global(2,2) ; //matrice M.(du, dp) = (Navier-Stokes, divergence)
 
  /* ligne Navier-Stokes : blocs N-S, bloc gradient */
  Matrice_global.get_bloc(0,0).typer("Matrice_Morse");
  Matrice_Morse& matrice=ref_cast(Matrice_Morse, Matrice_global.get_bloc(0,0).valeur());
  Matrice_global.get_bloc(0,1).typer("Matrice_Morse");
  Matrice_Morse& mat_grad=ref_cast(Matrice_Morse, Matrice_global.get_bloc(0,1).valeur());
 
  if (eqnNS.has_interface_blocs()) /* si interface_blocs : on peut remplir les deux d'un coup */
    {
      eqnNS.dimensionner_blocs({{ "vitesse", &matrice }, { "pression", &mat_grad }});
      eqnNS.assembler_blocs_avec_inertie({{ "vitesse", &matrice }, { "pression", &mat_grad }}, residu_parts[0]);
    }
  else /* sinon : moins elegant */
    {
      Operateur_Grad& gradient = eqnNS.operateur_gradient();
 
      eqnNS.dimensionner_matrice(matrice);
      eqnNS.assembler_avec_inertie(matrice,current,residu_parts[0]);
      gradient->dimensionner( mat_grad);
      gradient->contribuer_a_avec(pression, mat_grad);
      mat_grad.get_set_coeff()*=-1;
      /* pour repasser en increments */
      residu_parts[0]*=-1;
      matrice.ajouter_multvect(current, residu_parts[0]);
      gradient->ajouter(pression,residu_parts[0]);
      residu_parts[0]*=-1;
    }
 
  if (is_PolyMAC_CDO)
    {
      /* ligne de masse : (div, 0) */
      Operateur_Div& divergence = eqnNS.operateur_divergence();
      Matrice_global.get_bloc(1,0).typer("Matrice_Morse");
      Matrice_Morse& mat_div=ref_cast(Matrice_Morse, Matrice_global.get_bloc(1,0).valeur());
      divergence->dimensionner(mat_div);
      divergence->contribuer_a_avec( current,mat_div);
      divergence.calculer(current, residu_parts[1]);
 
      Matrice_global.get_bloc(1,1).typer("Matrice_Diagonale");
      Matrice_Diagonale& mat_diag = ref_cast(Matrice_Diagonale,Matrice_global.get_bloc(1,1).valeur());
      mat_diag.dimensionner(mat_div.nb_lignes());
 
      /* doit-on fixer P(elem 0) = 0 ? */
      int has_P_ref=0;
      const Conds_lim& cls = eqnNS.domaine_Cl_dis().les_conditions_limites();
      for (int n_bord=0; n_bord < cls.size(); n_bord++)
        if (sub_type(Neumann_sortie_libre,cls[n_bord].valeur())) has_P_ref=1;
 
      if (!has_P_ref && !Process::me()) mat_diag.coeff(0, 0) = 1; //revient a imposer P(0) = 0
 
      //en PolyMAC_CDO, on doit ajouter des lignes vides a grad et des colonnes vides a div
      int n = matrice.get_tab1().size_array();
      mat_grad.get_set_tab1().resize(n);
      for (int i = mat_grad.get_tab1().size_array(); i < n; i++)
        mat_grad.get_set_tab1()(i) = mat_grad.get_tab1()(i - 1);
      mat_div.set_nb_columns(n - 1);
 
      le_solveur_->reinit();
      le_solveur_->resoudre_systeme(Matrice_global,residu,Inconnues);
 
      //Calcul de Uk = U*_k + U'k
      current  += Inconnues_parts[0];
      ppart[0] += Inconnues_parts[1];
      //current.echange_espace_virtuel();
      Debog::verifier("Solveur_U_P::iterer_NS current",current);
      eqn.solv_masse().corriger_solution(current, current);    //CoviMAC : mise en coherence de ve avec vf
      eqnNS.assembleur_pression()->modifier_solution(pression);
 
      if (1)
        {
          divergence.calculer(current, secmem);
          Cerr<<" apresdiv "<<mp_max_abs_vect(secmem)<<finl;;
        }
    }
  else
    {
 
      /* doit-on fixer P(elem 0) = 0 ? */
      int has_P_ref=0;
      const Conds_lim& cls = eqnNS.domaine_Cl_dis().les_conditions_limites();
      for (int n_bord=0; n_bord < cls.size(); n_bord++)
        if (sub_type(Neumann_sortie_libre,cls[n_bord].valeur())) has_P_ref=1;
 
 
      /* ligne de masse : (div, 0) */
      Operateur_Div_base& divergence = eqnNS.operateur_divergence().valeur();
      Matrice_global.get_bloc(1,0).typer("Matrice_Morse");
      Matrice_Morse& mat_div_v = ref_cast(Matrice_Morse, Matrice_global.get_bloc(1,0).valeur());
      if (divergence.has_interface_blocs()) /* si interface_blocs : direct */
        {
          Matrice_global.get_bloc(1,1).typer("Matrice_Morse");
          Matrice_Morse& mat_div_p = ref_cast(Matrice_Morse, Matrice_global.get_bloc(1,1).valeur());
          divergence.dimensionner_blocs({ { "vitesse", &mat_div_v } , { "pression", &mat_div_p}});
          divergence.ajouter_blocs({ { "vitesse", &mat_div_v } , { "pression", &mat_div_p}}, residu_parts[1]);
          if (!has_P_ref && !Process::me()) mat_div_p(0, 0) += 1; //revient a imposer P(0) = 0
        }
      else /* sinon : l'operateur remplit mat_div_v, on construit a la main mat_div_p = 0 */
        {
          divergence.dimensionner(mat_div_v);
          divergence.contribuer_a_avec(current, mat_div_v);
          divergence.calculer(current, residu_parts[1]);
          Matrice_global.get_bloc(1,1).typer("Matrice_Diagonale");
          Matrice_Diagonale& mat_div_p = ref_cast(Matrice_Diagonale,Matrice_global.get_bloc(1,1).valeur());
          mat_div_p.dimensionner(mat_div_v.nb_lignes());
          if (!has_P_ref && !Process::me()) mat_div_p.coeff(0, 0) += 1; //revient a imposer P(0) = 0
        }
      le_solveur_->reinit();
      le_solveur_->resoudre_systeme(Matrice_global,residu,Inconnues);
 
      //Calcul de Uk = U*_k + U'k
      current  += Inconnues_parts[0];
      pression += Inconnues_parts[1];
      //current.echange_espace_virtuel();
      Debog::verifier("Solveur_U_P::iterer_NS current",current);
      eqn.solv_masse().corriger_solution(current, current);    //CoviMAC : mise en coherence de ve avec vf
      eqnNS.assembleur_pression()->modifier_solution(pression);
 
      if (1)
        {
          //  DoubleTrav secmem(current);
          divergence.calculer(current, secmem);
          Cerr<<" apresdiv "<<mp_max_abs_vect(secmem)<<finl;;
        }
    }
}