Viscosite_turbulente_k_tau.h

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#ifndef Viscosite_turbulente_k_tau_included
#define Viscosite_turbulente_k_tau_included
#include <TRUSTTab.h>
#include <Viscosite_turbulente_base.h>
 
/*! @brief classe Viscosite_turbulente_k_tau Viscosite turbulente pour un modele "k-tau" : nu_t = k * tau
 *
 *     (Energie_cinetique_turbulente / Echelle_temporelle_turbulente)
 *
 *
 */
class Viscosite_turbulente_k_tau : public Viscosite_turbulente_base
{
  Declare_instanciable(Viscosite_turbulente_k_tau);
public:
  void eddy_viscosity(DoubleTab& nu_t) const override;
  void reynolds_stress(DoubleTab& R_ij) const override;
  void k_over_eps(DoubleTab& k_sur_eps) const override;
  void eps(DoubleTab& eps) const override;
  inline double limiteur() const {return limiter_;};
  int gradu_required() const override {  return 1; };
 
private:
  double limiter_ = 0.01; //"limiteur" fournissant une valeur minimale de la viscosite turbulente : nu_t = max(k * tau, 0.01 * limiter_)
  double sigma_ = 1.;
  double beta_k_ = 0.09;
};
 
#endif