ULENCE IN A ROUGHNESS LAYER

É. I. Smolyar

UDC 532.5.546

Consideration is given to a model of turbulent flow in 
a roughness layer; the model is formed by the equations for turbulent 
momentum and turbulence-energy density and by free boundary conditions 
at self-establishing boundaries of the turbulent zone in the entire 
layer and in roughness cells. The model describes the interactions 
of the flow with the elements of roughness and the processes in the 
cells of different scales. Certain calculated characteristics of turbulence 
in vegetation are given.

Agrophysical Research Institute, Russian Academy of Agricultural 
Sciences, 14 Grazhdanskii Ave., St. Petersburg, 194220, Russia. Translated 
from Inzhenerno-Fizicheskii Zhurnal, Vol. 78, No. 4, pp. 143-151, 
July-August, 2005. Original article submitted January 17, 2004; 
revision submitted July 7, 2004.