DISTINCTIVE FEATURES OF GASDYNAMICS
IN INTERACTION OF A SHOCK WAVE
WITH A NONISOTHERMAL GAS LOCK
INSIDE A CHANNEL
V. G. Puzacha and S. V. Puzachb

UDC 614.841.4

A mathematical model for calculation of gasdynamics, which 
models to a first approximation the process of fighting a fire inside 
a channel of arbitrary geometry by a pinpoint explosion, is proposed. 
The main factors determining the parameters of the process have been 
revealed. The formulas to determine the maximum shift of the region 
occupied by a hot gas relative to its initial position as well as 
the formulas for the maximum temperatures throughout the process and 
along the length of the channel at the moment of establishment of 
the "quasistationary" position of this region have been obtained by 
generalization of the data of a numerical experiment. It is shown 
that the geometry of the channel has a substantial influence on the 
dynamics of the process.

aInstitute of High Temperatures, Russian Academy of 
Sciences, Moscow, Russia; 
bAcademy of State Fire-Prevention Service, Moscow, Russia; 
email: puzachsv@hotmail.com. 
Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 75, No. 1, 
pp. 66-70, January-February, 2002. Original article submitted 
October 24, 2000; revision submitted March 16, 2001.

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