INFLUENCE OF TURBULENCE ON THE THERMAL
RADIATION TRANSFER IN DIFFUSION HYDROGEN FLAMES

A. I. Bril'

UDC 536.3:532.517.4

The effect of the turbulent fluctuations of the temperature 
and concentrations in a diffusion hydrogen flame on its thermal radiation 
has been quantitatively estimated. The numerical investigations were 
carried out using the data on the laser probing of this flame. The 
coefficients of the radiation-transfer equation were determined by 
averaging instantaneous temperatures and concentrations, which made 
it possible to eliminate the errors introduced by model distribution 
functions. It is shown that the effect of the turbulence of a flame 
on its radiation determines, to a large extent, the formation of the 
thermal radiation fields of the flame.

B. I. Stepanov Institute of Physics, National Academy 
of Sciences of Belarus, 68 F. Skorina Ave., Minsk, 220072, Belarus; 
e-mail: bril@dragon.bas-net.by. Translated from Inzhenerno-Fizicheskii 
Zhurnal, Vol. 77, No. 6, pp. 146-151, November-December, 2004. 
Original article submitted October 6, 2003.