Calculate steady-state Richardson number from c3


INTERFACE:

   REALTYPE function  compute_rist(c1,c2,c3)
DESCRIPTION:

Numerically computes the steady-state Richardson-number $ Ri_{st}$ for two-equations models from the given $ c_{\psi 3}$ and the parameters $ c_{\psi 1}$ and $ c_{\psi 2}$ according to (116). A (very tricky) double Newton-iteration is used to solve the resulting implicit non-linear equation.


USES:

   use turbulence, only:           as,an,cmue1,cmue2
   use turbulence, only:           cm0
   use turbulence, only:           turb_method,stab_method
   use turbulence, only:           cm0_fix,Prandtl0_fix
   use turbulence, only:           Constant
   use turbulence, only:           MunkAnderson
   use turbulence, only:           SchumGerz
   use turbulence, only:           EiflerSchrimpf
   IMPLICIT NONE
INPUT PARAMETERS:
   REALTYPE, intent(in)           :: c1,c2,c3
REVISION HISTORY:
   Original author(s): Hans Burchard, Lars Umlauf



Karsten Bolding 2012-12-28