Interface_base.cpp

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#include <Discretisation_base.h>
#include <Interface_base.h>
#include <QDM_Multiphase.h>
#include <Equation_base.h>
#include <Pb_Multiphase.h>
#include <Domaine_VF.h>
#include <TRUSTTrav.h>
 
Implemente_base(Interface_base, "Interface_base", Objet_U);
// XD Interface_base objet_u Interface_base INHERITS_BRACE Basic class for a liquid-gas interface (used in
// XD_CONT pb_multiphase)
 
Sortie& Interface_base::printOn(Sortie& os) const { return os; }
 
void Interface_base::set_param(Param& param) const
{
  param.ajouter("tension_superficielle|surface_tension", &sigma__); // XD_ADD_P floattant
  // XD_CONT surface tension
}
 
Entree& Interface_base::readOn(Entree& is)
{
  Param param(que_suis_je());
  set_param(param);
  param.lire_avec_accolades_depuis(is);
  return is;
}
 
void Interface_base::discretiser_sigma(const Nom& sig_nom, double temps)
{
  const Discretisation_base& dis = pb_->discretisation();
  const Domaine_dis_base& dom_dis = pb_->domaine_dis();
  dis.discretiser_champ("temperature", dom_dis, sig_nom, "N/m", 1, temps, ch_sigma_);
}
 
 
void Interface_base::mettre_a_jour(double temps)
{
  DoubleTab& sigma_tab = ch_sigma_->valeurs();
  const Pb_Multiphase& pbm = ref_cast(Pb_Multiphase, pb_.valeur());
  const DoubleTab& press = ref_cast(QDM_Multiphase, pbm.equation_qdm()).pression().valeurs(),
                   &temp = pbm.equation_energie().inconnue().valeurs();
 
  // XXX Elie Saikali : Cas sans saturation !
  // for now we simplify the computation and take the average of T
  // FIXME: need to compute T at the interface as done in Source_Flux_interfacial_base::ajouter_blocs
  // T_interf = ( Tl / hl + Tg / hg ) / (1 / hl + 1 / hg )
 
  const int N = temp.line_size();
  DoubleTrav Ti(sigma_tab);
  Ti = 0.;
 
  for (int i = 0; i < Ti.dimension_tot(0); i++)
    {
      for (int j = 0; j < N; j++) Ti(i, 0) += temp(i, j);
      Ti(i,0) /= N;
    }
 
  // call sigma
  sigma(Ti.get_span(), press.get_span(), sigma_tab.get_span(), 1, 0);
  sigma_tab.echange_espace_virtuel();
}
 
// laws in T
void Interface_base::sigma(const SpanD T, const SpanD P, SpanD res, int ncomp, int ind) const
{
  if (sigma__ >= 0)
    for (int i = 0; i < (int) P.size(); i++)
      res[i * ncomp + ind] = sigma__;
  else
    sigma_(T, P, res, ncomp, ind);
}
 
double Interface_base::sigma(const double T, const double P) const
{
  ArrayD Tt = { T }, Pp = { P }, res_ = { 0. };
  sigma(SpanD(Tt), SpanD(Pp), SpanD(res_), 1, 0);
  return res_[0];
}
 
// laws in h
void Interface_base::sigma_h(const SpanD H, const SpanD P, SpanD res, int ncomp, int ind) const
{
  if (sigma__ >= 0)
    for (int i = 0; i < (int) P.size(); i++)
      res[i * ncomp + ind] = sigma__;
  else
    sigma_h_(H, P, res, ncomp, ind);
}
 
double Interface_base::sigma_h(const double h, const double P) const
{
  ArrayD H = { h }, Pp = { P }, res_ = { 0. };
  sigma_h(SpanD(H), SpanD(Pp), SpanD(res_), 1, 0);
  return res_[0];
}