Explosion mechanism of HMX dust within a tank and its comparative analysis of explosion characteristics with IPN mist

Yixiao Zhang, Huimin Liang, Qi Zhang*, Zhuorong An, Rui Liu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

This study establishes a numerical model for dust flow and dust cloud explosion, elucidating the mechanisms underlying HMX dust cloud explosions and the variations in explosion parameters concerning concentration and particle size. Furthermore, it compares HMX dust's explosion parameters with IPN mist's. The findings can be a pivotal basis for the design of explosive compositions and accident prevention. As the concentration increases, both the maximum explosion pressure (Pmax) and the maximum rate of pressure rise ((dP/dt)max) of HMX dust undergo significant increases. As the particle size increases, Pmax and (dP/dt)max for HMX dust exhibit no significant variations. When the concentrations of HMX dust and IPN mist are 400 g/m3, there are no significant differences in their Pmax and (dP/dt)max. However, when the concentrations of HMX dust and IPN mist are 100 g/m3, the hazards of IPN mist are higher than those of HMX dust.

Original languageEnglish
Article number120325
JournalPowder Technology
Volume448
DOIs
Publication statusPublished - 1 Dec 2024

Keywords

  • Concentration and particle size
  • Explosion mechanism
  • HMX dust clouds
  • IPN mist

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