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Fizika Goreniya i Vzryva, 2018, Volume 54, Issue 2, Pages 82–88
DOI: https://doi.org/10.15372/FGV20180209
(Mi fgv493)
 

This article is cited in 15 scientific papers (total in 15 papers)

Attenuation and suppression of detonation waves in reacting gas mixtures by clouds of inert microand nanoparticles

D. A. Tropin, A. V. Fedorov

Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
Abstract: Physicomathematical models are proposed to describe the processes of detonation propagation, attenuation, and suppression in hydrogen–oxygen, methane–oxygen, and silane-air mixtures with inert micro- and nanoparticles. Based on these models, the detonation velocity deficit is found as a function of the size and concentration of inert micro- and nanoparticles. Three types of detonation flows in gas suspensions of reacting gases and inert nanoparticles are observed: steady propagation of an attenuated detonation wave in the gas suspension, propagation of a galloping detonation wave near the flammability limit, and failure of the detonation process. The mechanisms of detonation suppression by microparticles and nanoparticles are found to be similar to each other. The essence of these mechanisms is decomposition of the detonation wave into an attenuating frozen shock wave and the front of ignition and combustion, which lags behind the shock wave. The concentration limits of detonation in the considered reacting gas mixtures with particles ranging from 10 nm to 1 $\mu$m in diameter are also comparable. It turns out that the detonation suppression efficiency does not increase after passing from microparticles to nanoparticles.
Keywords: detonation suppression, mixtures of hydrogen, methane, and silane, detailed chemical kinetics, mathematical modeling, gas suspension.
Funding agency Grant number
Russian Science Foundation 16-19-00010
Russian Foundation for Basic Research 15-08-01947-a
16-08-00778-a
Received: 21.04.2017
English version:
Combustion, Explosion and Shock Waves, 2018, Volume 54, Issue 2, Pages 200–206
DOI: https://doi.org/10.1134/S0010508218020090
Bibliographic databases:
Document Type: Article
UDC: 662.612:32
Language: Russian
Citation: D. A. Tropin, A. V. Fedorov, “Attenuation and suppression of detonation waves in reacting gas mixtures by clouds of inert microand nanoparticles”, Fizika Goreniya i Vzryva, 54:2 (2018), 82–88; Combustion, Explosion and Shock Waves, 54:2 (2018), 200–206
Citation in format AMSBIB
\Bibitem{TroFed18}
\by D.~A.~Tropin, A.~V.~Fedorov
\paper Attenuation and suppression of detonation waves in reacting gas mixtures by clouds of inert microand nanoparticles
\jour Fizika Goreniya i Vzryva
\yr 2018
\vol 54
\issue 2
\pages 82--88
\mathnet{http://mi.mathnet.ru/fgv493}
\crossref{https://doi.org/10.15372/FGV20180209}
\elib{https://elibrary.ru/item.asp?id=32819294}
\transl
\jour Combustion, Explosion and Shock Waves
\yr 2018
\vol 54
\issue 2
\pages 200--206
\crossref{https://doi.org/10.1134/S0010508218020090}
Linking options:
  • https://www.mathnet.ru/eng/fgv493
  • https://www.mathnet.ru/eng/fgv/v54/i2/p82
  • This publication is cited in the following 15 articles:
    Citing articles in Google Scholar: Russian citations, English citations
    Related articles in Google Scholar: Russian articles, English articles
    Fizika Goreniya i Vzryva Fizika Goreniya i Vzryva
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