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Ignition of petn particles by a gas-detonation wave

V. V. Grigor'ev, L. A. Luk'yanchikov, È. R. Pruuel

Lavrentyev Institute of Hydrodynamics of Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090

Abstract: Ignition of PETN particles by a gas-detonation wave in a gas suspension has been studied experimentally. The critical pressure at which the total rate of PETN decomposition increases sharply has been found using a method of multiwave pyrometry with variation in the pressure of the initial gas mixture from 0.1 to 0.4MPa. It is shown that this can occur owing to a large increase in the PETN surface area because of the fragmentation of melting particles in a high-enthalpy flow of gas.

UDC: 536.46:533.6+534.222.2

Received: 20.11.1996

 English version: Combustion, Explosion and Shock Waves, 1997, 33:2, 238–242

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