Masse_ajoutee_Zuber.cpp

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#include <Masse_ajoutee_Zuber.h>
#include <Pb_Multiphase.h>
 
Implemente_instanciable(Masse_ajoutee_Zuber, "Masse_ajoutee_Zuber", Masse_ajoutee_base);
 
Sortie& Masse_ajoutee_Zuber::printOn(Sortie& os) const
{
  return os;
}
 
Entree& Masse_ajoutee_Zuber::readOn(Entree& is)
{
  Param param(que_suis_je());
  param.ajouter("beta", &beta);
  param.ajouter("inj_ajoutee_liquide", &inj_ajoutee_liquide_);
  param.ajouter("inj_ajoutee_gaz", &inj_ajoutee_gaz_);
  param.ajouter("limiter_liquid", &limiter_liquid_);
  param.lire_avec_accolades_depuis(is);
 
  const Pb_Multiphase *pbm = sub_type(Pb_Multiphase, pb_.valeur()) ? &ref_cast(Pb_Multiphase, pb_.valeur()) : nullptr;
 
  if (!pbm || pbm->nb_phases() == 1) Process::exit(que_suis_je() + " : not needed for single-phase flow!");
  for (int n = 0; n < pbm->nb_phases(); n++) //search for n_l, n_g: continuous {liquid,gas} phase with priority
    if (pbm->nom_phase(n).debute_par("liquide") && (n_l < 0 || pbm->nom_phase(n).finit_par("continu")))  n_l = n;
 
  if (n_l < 0) Process::exit(que_suis_je() + " : liquid phase not found!");
 
  return is;
}
 
void Masse_ajoutee_Zuber::ajouter(const double *alpha, const double *rho, DoubleTab& a_r) const
{
  int k, N = a_r.dimension(0);
  for (k = 0; k < N; k++)
    if (n_l != k)
      {
        double coeff_loc = beta * ( 1. + 2.*alpha[k]) / std::max(1. - alpha[k], 1.e-3);
        a_r(k,  k ) += std::min(coeff_loc * rho[n_l] * alpha[k], limiter_liquid_ * rho[n_l] * alpha[n_l]) ;
        a_r(k, n_l) -= std::min(coeff_loc * rho[n_l] * alpha[k], limiter_liquid_ * rho[n_l] * alpha[n_l]) ;
        a_r(n_l,n_l)+= std::min(coeff_loc * rho[n_l] * alpha[k], limiter_liquid_ * rho[n_l] * alpha[n_l]) ;
        a_r(n_l, k) -= std::min(coeff_loc * rho[n_l] * alpha[k], limiter_liquid_ * rho[n_l] * alpha[n_l]) ;
      }
}
 
void Masse_ajoutee_Zuber::ajouter_inj(const double *flux_alpha, const double *alpha,  const double *rho, DoubleTab& f_a_r) const
{
  int N = f_a_r.dimension(0);
  for (int k = 0; k < N; k++)
    if (n_l != k)
      {
        double coeff_loc = beta * ( 1. + 2.*alpha[k]) / std::max( alpha[n_l], 1.e-4 );
        double flux_ma = (alpha[k] < 1.e-4) ? coeff_loc * rho[n_l] * flux_alpha[k] : std::min(coeff_loc * rho[n_l] * flux_alpha[k], limiter_liquid_ * rho[n_l] * alpha[n_l] * flux_alpha[k] / alpha[k]) ;
        f_a_r(k,  k ) += inj_ajoutee_gaz_ * flux_ma ;
        f_a_r(k, n_l) -= 0.;
        f_a_r(n_l,n_l)+= 0.;
        f_a_r(n_l, k) -= inj_ajoutee_liquide_ * flux_ma ; //beta * rho[n_l] * flux_alpha[k];
      }
}
 
void Masse_ajoutee_Zuber::coeff(const DoubleTab& alpha, const DoubleTab& rho, DoubleTab& coeff) const
{
  int k, N = coeff.dimension(0);
  for (k = 0; k < N; k++)
    if (n_l != k)
      {
        double coeff_loc = beta * ( 1. + 2.*alpha[k]) / std::max(1. - alpha[k], 1.e-3); ;
        coeff(k) = (alpha[k]>1.e-6) ? std::min(coeff_loc, limiter_liquid_ * alpha[n_l] /  alpha[k]) : coeff_loc ;
      }
}