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Combustion, Explosion and Shock Waves

2015 year, number 4

Instability of a Detonation Waves in Nitromethane and FEFO

A. V. Utkin1,2, V. M. Mochalova1,2, S. I. Torunov1, S. A. Koldunov1
1Institute of Problems of Chemical Physics, Chernogolovka, 142432 Russia
2Tomsk State University, Tomsk, 634050 Russia
Keywords: detonation, instability of detonation front, waves of reaction failure, pulsations of detonation front, nitromethane, FEFO, nitromethane/diethylenetriamine mixture
Pages: 476–481

Abstract

The stability of detonation waves in nitromethane and FEFO was studied in experiments using a VISAR laser interferometer and an SFR high-speed photorecorder. It is shown that the relationship between various types of instability of the detonation front in liquid explosives is not strictly deterministic. Waves of reaction failure exist in the case of a stable detonation front (no cellular structure) and are absent in the case of an unstable detonation front.

DOI: http://dx.doi.org/10.1134/S0010508215040127