Structure of unstable detonation front in liquid explosives

V. A. Sosikov, S. I. Torunov, D. Yu. Rapota, V. M. Mochalova, A. V. Utkin, S. A. Koldunov

Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, 142432, Chernogolovka, Russia

Abstract: Experiments are conducted to study the instability of detonation waves in mixtures of nitromethane, tetranitromethane, and FIFO with inert diluents by recording the detonation front glow with a NANOGATE-22/16 high-speed eight-channel sixteen-frame electron-optical camera. In the detonation instability region, the detonation front exhibits a nonuniform glow, which is associated with a turbulent flow in the reaction region. The formation of cellular structures with the reaction of the explosive in oblique and transverse waves is not observed in the compositions studied.

Keywords: detonation, detonation instability, detonation front glow, nitromethane, tetranitromethane, FIFO.

UDC: 534.222.2

Received: 04.09.2023
Revised: 09.10.2023
Accepted: 08.11.2023

DOI: 10.15372/FGV2023.9381

 English version: Combustion, Explosion and Shock Waves, 2024, 60:6, 708–716

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