%0 Journal Article
%J Boundary-Layer Meteorology
%D 2010
%T On the velocity gradient in the stably stratified sheared flows. Part 1: Asymptotic analysis and applications
%A Zilitinkevich, Sergej
%A Esau, Igor
%A Kleeorin, N.
%A Rogachevskii, I.
%A Kouznetsov, R. D.
%K Flux Richardson number
%K Stationary and homogeneous regime
%K Strong static stability
%K Turbulence closure
%K Turbulent dissipation length scale
%K Turbulent kinetic energy
%K Velocity gradient
%X We give a new derivation of the familiar linear relation for the dimensionless velocity gradient in the stably stratified surface layer and provide physical and empirical grounds for its universal applicability in stationary homogeneous turbulence over the whole range of static stabilities from Ri = 0 to very large Ri. Combining this relation with the budget equation for the turbulent kinetic energy we obtain the “equilibrium formulation” of the turbulent dissipation length scale, and recommend it for use in turbulence closure models.
%B Boundary-Layer Meteorology
%I Springer Netherlands
%V 135
%8 03/2010
%@ 1573-1472
%U http://www.springerlink.com/content/0537l32014257n10/
%R 10.1007/s10546-010-9488-x
%> https://www.nersc.no/sites/www.nersc.no/files/On the Velocity Gradient in Stably Stratified Sheared Flows. Part 2- Observations and Models.pdf