NUMERICAL SIMULATION OF A NONSTATIONARY GAS
JET GENERATED BY A PULSED-GAS GENERATOR

S. M. Aul'chenko, V. P. Zamuraev,
V. I. Zvegintsev, and V. F. Chirkashenko

UDC 532.525.2

The efflux of an axially symmetrical ideal-gas jet generated 
by a pulsed-gas generator has been mathematically simulated. The structure 
and parameters of nonstationary gas jets have been determined. The 
influence of the geometric parameters of a pulsed-gas generator and 
the initial pressure in its accumulation reservoir on the characteristics 
of the jet, determining the efficiency of its action on an obstacle, 
has been investigated. The calculation data were compared with the 
corresponding experimental data.

Institute of Theoretical and Applied Mechanics, Siberian 
Branch of the Russian Academy of Sciences, 4 Institutskaya Str., 
Novosibirsk, 630091, Russia; email: aultch@itam.ncc.ru. 
Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 78, 
No. 2, pp. 145-151, March-April, 2005. Original article 
submitted January 9, 2004; revision submitted March 16, 2004.