Numerical simulation of blast wave mitigation achieved by water inside a subsurface magazine model

Yuta Sugiyama, Tomohiro Tanaka, Akiko Matsuo, Tomotaka Homae, Kunihiko Wakabayashi, Tomoharu Matsumura, Yoshio Nakayama

研究成果: Article査読

13 被引用数 (Scopus)

抄録

This paper visualizes explosions in a subsurface magazine model constructed underground to mitigate the effects of blast waves. Numerical simulations discuss the effect of water that is put inside the magazine model. In the case of the explosion inside the magazine with water, the peak overpressure on the ground becomes smaller than that in the case of the explosion on the ground. The peak overpressures on the ground agree with those in the previous experiment. The increases of kinetic and internal energies of water are then estimated, and that the internal energy transfer at the interface of water and air is one of important factors to mitigate the blast wave on the ground in the present numerical method. As high-pressure gas at the exit of the magazine model drives the blast wave, the exit impulse and pressure are calculated and well reduced in the case with water inside the magazine model. Our study confirms that the exit pressure can scale the peak overpressure on the ground.

本文言語English
ページ(範囲)521-528
ページ数8
ジャーナルJournal of Loss Prevention in the Process Industries
43
DOI
出版ステータスPublished - 2016 9月 1

ASJC Scopus subject areas

  • 制御およびシステム工学
  • 食品科学
  • 化学工学(全般)
  • 安全性、リスク、信頼性、品質管理
  • エネルギー工学および電力技術
  • 経営科学およびオペレーションズ リサーチ
  • 産業および生産工学

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