• Title/Summary/Keyword: Doble-Front Detonation

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Numerical investigation on the performance of the aluminized HMX with varying aluminum concentration (알루미늄 함유량 변화에 따른 알루미늄 입자가 함유된 HMX 성능에 관한 수치 연구)

  • Kim, Wuhyun;Gwak, Min-cheol;Yoh, Jai-ick
    • Proceedings of the Korean Society of Propulsion Engineers Conference
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    • 2017.05a
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    • pp.617-621
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    • 2017
  • The performance characteristics of aluminized high explosive are considered by varying the aluminum(Al) concentration in a two-phase model. Since the time scales of the characteristic combustion process of high explosives and Al particles differ, the process of energy release behind the leading detonation wave front occurs over an extended period of time. Two cardinal observations are reported: a decrease in detonation velocity with an increase in Al concentration and a double front detonation (DFD) feature when anaerobic Al reaction occurs behind the front. In the current study, a series of confined rate sticks are considered for characterizing the performance of aluminized HMX with a maximum Al concentration of 50%. The simulated results are compared with the experimental data for 5%-25% concentrations.

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