Operateur_Diff_base.cpp

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#include <Operateur_Diff_base.h>
#include <Milieu_base.h>
#include <Champ_base.h>
 
Implemente_base(Operateur_Diff_base,"Operateur_Diff_base",Operateur_base);
 
Sortie& Operateur_Diff_base::printOn(Sortie& os) const
{
  return os;
}
 
Entree& Operateur_Diff_base::readOn(Entree& is)
{
  return is;
}
 
/*! @brief Associates the true diffusivity in m^2/s (in QC for example, the operator is applied to rho*u, and the dynamic viscosity is then associated to
 *
 *   the operator instead of the kinematic viscosity. In that case, it
 *   is necessary to associate the true diffusivity here for the computation
 *   of the stability time step.
 *
 */
void Operateur_Diff_base::associer_diffusivite_pour_pas_de_temps(
  const Champ_base& diffu)
{
  if (je_suis_maitre())
    {
      Cerr << "Operateur_Diff_base::associer_diffusivite_pour_pas_de_temps\n";
      Cerr << " field name : " << diffu.le_nom();
      Cerr << " unit : "        << diffu.unite() << finl;
    }
  diffusivite_pour_pas_de_temps_ = diffu;
}
 
/*! @brief Returns the field corresponding to the true diffusivity of the medium used for the time step computation.
 *
 * If the operator is applied to rho*v
 *   for example (QC case for instance), the associated diffusivity is the
 *   dynamic viscosity and not the kinematic viscosity. The kinematic
 *   viscosity must be used for the time step computation...
 *   The true diffusivity (in m^2/s) is determined as follows:
 *   * if diffusivite_pour_pas_de_temps_ has been initialised => it is used
 *      (mechanism set up for front-tracking, because the medium
 *       is invalid)
 *   * otherwise diffusivite() is used
 *
 */
const Champ_base& Operateur_Diff_base::diffusivite_pour_pas_de_temps() const
{
  assert( diffusivite_pour_pas_de_temps_ );
  return diffusivite_pour_pas_de_temps_.valeur();
}
 
void Operateur_Diff_base::associer_diffusivite_volumique(const Champ_base& champ)
{
  Cerr << que_suis_je() << " does not support volumic diffusivity (received field " << champ.le_nom() << ")." << finl;
  Process::exit();
}