EQUALIZATION OF THE CONCENTRATION OF A SCALAR IMPURITY 
IN A FLOW-TYPE CHAMBER

Yu. M. Dmitrenko,a R. Zahoransky, b  
and S. P. Fisenkoa 

UDC 532.5

Experimental and theoretical investigations of the time 
of equalization of the concentration of an impurity in a rectangular 
flow-type chamber have been carried out. It has been shown that the 
process of equalization of the concentration with time is exponential 
in character. The characteristic equalization time has been computed 
using the theory of turbulent diffusion. Theoretical results describe 
experimental regularities with an accuracy of about 10%. The value 
of the coefficient of turbulent diffusion for different configurations 
of flows in the chamber has been obtained from a comparison of experimental 
and calculated results.

a A. V. Luikov Heat and Mass 
Transfer Institute, National Academy of Sciences of Belarus, 15 P. 
Brovka Str., Minsk, 220072, Belarus; email: fsp@hmti@ac.by; 
b University of Applied Sciences, 77652, Offenburg, Germany. 
Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 77, No. 5, pp. 
3-9, September-October, 2004. Original article submitted March 
25, 2004.