The algebraic velocity variances


INTERFACE:

   subroutine variances(nlev,SSU,SSV)
DESCRIPTION:

Using (72) and the solution shown in (76) and the variances of the turbulent velocity fluctations can be evaluated according to

\begin{displaymath}\begin{array}{rcl} \dfrac{\langle u'^2 \rangle}{k} &=& \dfrac...
...{3}-a_3\right) P +\dfrac83 a_5 G \right) \; , \quad \end{array}\end{displaymath} (182)

where the diffusivities are computed according to (46) (also see section 4.26 and section 4.27), and the buoyancy production, $ G$, follows from (149).


USES:

  use turbulence,  only:     uu,vv,ww
  use turbulence,  only:     tke,eps,P,B,num
  use turbulence,  only:     cc1,ct1,a2,a3,a5
  IMPLICIT NONE
INPUT PARAMETERS:
 
  number of vertical layers
  integer,  intent(in)                 :: nlev
 
  square of shear frequency (1/s^2)
  (from u- and v-component)
  REALTYPE, intent(in)                :: SSU(0:nlev),SSV(0:nlev)
REVISION HISTORY:
   Original author(s): Lars Umlauf



Karsten Bolding 2012-12-28