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Structure of Detonation Waves in Mixtures of Tetranitromethane with Acetone

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Combustion, Explosion, and Shock Waves Aims and scope

Abstract

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.

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Authors and Affiliations

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

    A. V. Utkin, V. M. Mochalova, V. E. Rykova, V. A. Sosikov, D. Yu. Rapota & S. I. Torunov

  2. Reshetnev Siberian State University of Science and Technologies, 660037, Krasnoyarsk, Russia

    A. M. Astakhov

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  1. A. V. Utkin
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  2. V. M. Mochalova
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  3. A. M. Astakhov
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  4. V. E. Rykova
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  5. V. A. Sosikov
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  6. D. Yu. Rapota
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  7. S. I. Torunov
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Correspondence to A. V. Utkin.

Additional information

Translated from Fizika Goreniya i Vzryva, 2023, Vol. 59, No. 4, pp. 122-130. https://doi.org/10.15372/FGV20230414.

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Utkin, A.V., Mochalova, V.M., Astakhov, A.M. et al. Structure of Detonation Waves in Mixtures of Tetranitromethane with Acetone. Combust Explos Shock Waves 59, 508–515 (2023). https://doi.org/10.1134/S0010508223040147

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  • DOI: https://doi.org/10.1134/S0010508223040147

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