Structure of Detonation Waves in Mixtures of Tetranitromethane with Acetone

被引：0

作者：

Utkin, A. V. ^{[1
]}

Mochalova, V. M. ^{[1
]}

Astakhov, A. M. ^{[2
]}

Rykova, V. E. ^{[1
]}

Sosikov, V. A. ^{[1
]}

Rapota, D. Yu. ^{[1
]}

Torunov, S. I. ^{[1
]}

机构：

[1] Russian Acad Sci, Fed Res Ctr Problems Chem Phys & Med Chem, Chernogolovka 142432, Russia

[2] Reshetnev Siberian State Univ Sci & Technol, Krasnoyarsk 660037, Russia

来源：

COMBUSTION EXPLOSION AND SHOCK WAVES | 2023年 / 59卷 / 04期

关键词：

tetranitromethane; acetone; detonation; von Neumann spike; instability; detonation velocity; Chapman-Jouguet parameters; NITROMETHANE; NITROBENZENE; EXPLOSIVES; STABILITY; FRONT;

D O I：

10.1134/S0010508223040147

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The structure of detonation waves in mixtures of tetranitromethane with acetone was studied experimentally using a VISAR interferometer and a NANOGATE-22 electron-optical camera. At a diluent concentration of 10-40%, there was a sharp change in the flow pattern in the reaction zone, manifested in a decrease in the amplitude of the von Neumann spike up to its complete disappearance. The detonation waves are stable in almost the entire range of concentrations, except in the range near the critical value of 52%. Near the critical concentration, the waves become unstable, resulting in the formation of both the cellular structure of the detonation front and reaction failure waves on the boundary with the shell. The obtained experimental dependences of the detonation velocity on acetone concentration are in good agreement with thermodynamic calculations.

引用

页码：508 / 515

页数：8

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