Op_Diff_PolyMAC_HFV_base.cpp

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#include <Op_Diff_PolyMAC_HFV_Face.h>
#include <Champ_Face_PolyMAC_HFV.h>
#include <Domaine_Cl_PolyMAC_family.h>
#include <Champ_Don_Fonc_xyz.h>
#include <Champ_Uniforme.h>
#include <Pb_Multiphase.h>
#include <Simpler_Base.h>
#include <Milieu_base.h>
#include <EChaine.h>
#include <deque>
 
Implemente_base(Op_Diff_PolyMAC_HFV_base, "Op_Diff_PolyMAC_HFV_base", Op_Diff_PolyMAC_CDO_Gen_base);
 
Sortie& Op_Diff_PolyMAC_HFV_base::printOn(Sortie& s) const { return s << que_suis_je(); }
 
Entree& Op_Diff_PolyMAC_HFV_base::readOn(Entree& s) { return s; }
 
void Op_Diff_PolyMAC_HFV_base::mettre_a_jour(double t)
{
  Operateur_base::mettre_a_jour(t);
  //if the field is constant in time, no need to recompute nu_ and the interpolations
  if (t <= t_last_nu_)
    return;
 
  if (!nu_constant_)
    nu_a_jour_ = 0;
 
  t_last_nu_ = t;
}
 
void Op_Diff_PolyMAC_HFV_base::completer()
{
  Operateur_base::completer();
  const Equation_base& eq = equation();
  int N = eq.inconnue().valeurs().line_size(), D = dimension, N_nu = std::max(N * dimension_min_nu(), diffusivite().valeurs().line_size());
 
  if (N_nu == N)
    nu_.resize(0, N); //isotrope
  else if (N_nu == N * D)
    nu_.resize(0, N, D); //diagonal
  else if (N_nu == N * D * D)
    nu_.resize(0, N, D, D); //complet
  else
    Process::exit(Nom("Op_Diff_PolyMAC_HFV_base : diffusivity component count ") + Nom(N_nu) + "not among (" + Nom(N) + ", " + Nom(N * D) + ", " + Nom(N * D * D) + ")!");
 
  le_dom_poly_->domaine().creer_tableau_elements(nu_);
}
 
void Op_Diff_PolyMAC_HFV_base::update_nu() const
{
  const Domaine_PolyMAC_HFV& domaine = ref_cast(Domaine_PolyMAC_HFV, le_dom_poly_.valeur());
  const DoubleTab& nu_src = diffusivite().valeurs();
  int e, i, m, n, N = equation().inconnue().valeurs().line_size(), N_nu = nu_.line_size(), N_nu_src = nu_src.line_size(), mult = N_nu / N, c_nu = nu_src.dimension_tot(0) == 1, d, db, D = dimension;
  assert(N_nu % N == 0);
 
  /* nu_: if necessary, the source field must be extended */
  if (N_nu == N_nu_src)
    for (e = 0; e < domaine.nb_elem_tot(); e++)
      for (n = 0; n < N_nu; n++)
        nu_.addr()[N_nu * e + n] = nu_src(!c_nu * e, n); //facile
  else if (N_nu == N * D && N_nu_src == N)
    for (e = 0; e < domaine.nb_elem_tot(); e++)
      for (n = 0; n < N; n++)
        for (d = 0; d < D; d++) //diagonal
          nu_(e, n, d) = nu_src(!c_nu * e, n);
  else if (N_nu == N * D * D && (N_nu_src == N || N_nu_src == N * D))
    for (e = 0; e < domaine.nb_elem_tot(); e++)
      for (n = 0; n < N; n++) //complet
        for (d = 0; d < D; d++)
          for (db = 0; db < D; db++)
            nu_(e, n, d, db) = (d == db) * nu_src(!c_nu * e, N_nu_src == N ? n : D * n + d);
  else
    abort();
 
  /* weighting of nu by porosity and by alpha (if pb_Multiphase) */
  const DoubleTab *alp = sub_type(Pb_Multiphase, equation().probleme()) ? &ref_cast(Pb_Multiphase, equation().probleme()).equation_masse().inconnue().passe() : nullptr;
  for (e = 0; e < domaine.nb_elem_tot(); e++)
    for (n = 0, i = 0; n < N; n++)
      for (m = 0; m < mult; m++, i++)
        nu_.addr()[N_nu * e + i] *= equation().milieu().porosite_elem()(e) * (alp ? std::max((*alp)(e, n), 1e-8) : 1);
 
  /* modification by a derived class */
  modifier_mu(nu_);
 
  nu_a_jour_ = 1;
}
 
/* compute the auxiliary variables in semi-implicit mode */
void Op_Diff_PolyMAC_HFV_base::update_aux(double t) const
{
  const std::string& nom_inco = (le_champ_inco ? le_champ_inco.valeur() : equation().inconnue()).le_nom().getString();
  int i, j, n_ext = (int) op_ext.size(), first_run = mat_aux.nb_lignes() == 0; /* number of operators */
  if (first_run)
    for (mat_aux.dimensionner(n_ext, n_ext), i = 0; i < n_ext; i++)
      for (j = 0; j < n_ext; j++)
        mat_aux.get_bloc(i, j).typer("Matrice_Morse");
  std::vector<const Op_Diff_PolyMAC_HFV_base*> opp_ext(n_ext);
  for (i = 0; i < n_ext; i++)
    opp_ext[i] = &ref_cast(Op_Diff_PolyMAC_HFV_base, *op_ext[i]);
  std::vector<matrices_t> lines(n_ext); /* in the form of arguments for dimensionner/assembler_blocs */
  for (i = 0; i < n_ext; i++)
    for (j = 0; j < n_ext; j++)
      lines[i][nom_inco + (j == i ? "" : "/" + op_ext[j]->equation().probleme().le_nom().getString())] = &ref_cast(Matrice_Morse, mat_aux.get_bloc(i, j).valeur());
  if (first_run)
    for (i = 0; i < n_ext; i++)
      opp_ext[i]->dimensionner_blocs_ext(1, lines[i]); //sizing
 
  /* unknown / right-hand side */
  std::deque<ConstDoubleTab_parts> v_part;
  for (i = 0; i < n_ext; i++)
    v_part.emplace_back(op_ext[i]->has_champ_inco() ? op_ext[i]->mon_inconnue().valeurs() : op_ext[i]->equation().inconnue().valeurs());
  MD_Vector_composite mdc; //composite MD_Vector: built from all second blocks
  for (i = 0; i < n_ext; i++)
    mdc.add_part(v_part[i][1].get_md_vector(), v_part[i][1].line_size());
  MD_Vector mdv;
  mdv.copy(mdc);
  DoubleTrav inco, secmem;
  MD_Vector_tools::creer_tableau_distribue(mdv, inco), MD_Vector_tools::creer_tableau_distribue(mdv, secmem);
  DoubleTab_parts p_inc(inco), p_sec(secmem);
  for (i = 0; i < n_ext; i++)
    p_inc[i] = v_part[i][1];
 
  /* assemblage */
  if (!first_run)
    for (i = 0; i < n_ext; i++)
      for (j = 0; j < n_ext; j++)
        ref_cast(Matrice_Morse, mat_aux.get_bloc(i, j).valeur()).get_set_coeff() = 0;
  for (i = 0; i < n_ext; i++)
    opp_ext[i]->ajouter_blocs_ext(1, lines[i], p_sec[i]);
  /* incremented/unknown transition */
  mat_aux.ajouter_multvect(inco, secmem);
  /* resolution */
  if (first_run)
    {
      if (equation().parametre_equation())
        solv_aux = ref_cast(Parametre_implicite, equation().parametre_equation().valeur()).solveur(); //copy the solver from the equation
      else
        {
          EChaine chl("petsc cholesky { }");
          chl >> solv_aux;
        }
      solv_aux->fixer_limpr(-1);
    }
 
  solv_aux->reinit();
  solv_aux.resoudre_systeme(mat_aux, secmem, inco);
  /* update var_aux / t_last_aux in all operators */
  for (i = 0; i < n_ext; i++)
    opp_ext[i]->var_aux = p_inc[i], opp_ext[i]->t_last_aux_ = t, opp_ext[i]->use_aux_ = 1;
}