Viscosite_turbulente_WALE.h

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#ifndef Viscosite_turbulente_WALE_included
#define Viscosite_turbulente_WALE_included
 
#include <Viscosite_turbulente_LES_base.h>
 
/*! @brief classe Viscosite_turbulente_WALE
 *
 *                                               (Sij_d * Sij_d)^1.5
 *    visc_SGS = (Cw * delta)^2 * ---------------------------------------------------,
 *                                  (Sij_bar * Sij_bar)^2.5 + (Sij_d * Sij_d)^1.25
 *
 *    avec
 *
 *        Sij_d = 0.5 * (gij_bar^2 + gji_bar^2) -1/3 gkk_bar^2,
 *        gij_bar = du_i / dx_j,
 *        gij_bar^2 = gik_bar * gkj_bar,
 *        Sij_bar = 0.5 * (du_i / dx_j + du_j / dx_i)
 *
 *    See https://imag.umontpellier.fr/~nicoud/PDF/ICFD_WALE.pdf
 */
class Viscosite_turbulente_WALE: public Viscosite_turbulente_LES_base
{
  Declare_instanciable(Viscosite_turbulente_WALE);
public:
  void eddy_viscosity(DoubleTab& nu_t) const override;
  int gradu_required() const override { return 1; }
};
 
#endif /* Viscosite_turbulente_WALE_included */