POSSIBILITY OF CLEANING A CHANNEL
IN A SNOWY ATMOSPHERE BY A SUPERSONIC
OFF-DESIGN JET

Yu. G. Korobeinikov, A. P. Petrov,
G. V. Trubacheev, A. V. Fedorov,
and V. M. Fomin

UDC 532.525; 533.6.011

It has been found that the threshold value of the product 
of the excess gas pressure in the forechamber by the area of the nozzle 
throat is responsible for the appearance of the cleanup effect for 
a fixed nozzle-photodetector distance. The thermodynamic and dynamic 
criteria for the occurrence of the cleanup of the laser-beam trajectory 
have been formulated.

Institute of Theoretical and Applied Mechanics, Siberian 
Branch of the Russian Academy of Sciences, 4/1 Institutskaya Str., 
Novosibirsk, 630090, Russia; email: korob@itam.nsc.ru. Translated 
from Inzhenerno-Fizicheskii Zhurnal, Vol. 81, No. 1, pp. 165-170, 
January-February, 2008. Original article submitted November 9, 
2006.