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Deflagration-to-detonation transition in crossed-flow fast jets of propellant components

  • Physical Chemistry
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Abstract

It was experimentally proven for the first time that the turbulence produced by crossed-flow supersonic jets of a fuel (natural gas) and an oxidizer (oxygen), which are injected at a pressure of 25 to 150 atm into a smooth detonation tube 74 mm in diameter, causes a fast deflagration-to-detonation transition at distances as short as 300 mm (up to 4 tube diameters) in times of tenths of a millisecond (∼0.4 ms). The obtained results can be used for designing compact predetonators for detonation combustors of promising energy-converting devices.

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Authors and Affiliations

  1. Semenov Institute of Chemical Physics, Russian Academy of Sciences, Moscow, 119991, Russia

    S. M. Frolov, V. A. Smetanyuk, V. S. Aksenov & A. S. Koval’

  2. MEPhI National Research Nuclear University, Moscow, 115409, Russia

    S. M. Frolov & V. S. Aksenov

  3. Institute of Systems Research, Russian Academy of Sciences, Moscow, 117218, Russia

    S. M. Frolov & V. A. Smetanyuk

Authors
  1. S. M. Frolov
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  2. V. A. Smetanyuk
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  3. V. S. Aksenov
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  4. A. S. Koval’
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Correspondence to S. M. Frolov.

Additional information

Original Russian Text © S.M. Frolov, V.A. Smetanyuk, V.S. Aksenov, A.S. Koval’, 2017, published in Doklady Akademii Nauk, 2017, Vol. 476, No. 1, pp. 59–62.

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Frolov, S.M., Smetanyuk, V.A., Aksenov, V.S. et al. Deflagration-to-detonation transition in crossed-flow fast jets of propellant components. Dokl Phys Chem 476, 153–156 (2017). https://doi.org/10.1134/S0012501617090019

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  • DOI: https://doi.org/10.1134/S0012501617090019

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