Simulation of blast waves interaction for multiple cloud explosion

Chen Mingsheng; Chun Hua; Li Jianping

doi:10.11883/1001-1455(2016)01-0081-06

Volume 36 Issue 1

Oct. 2018

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Chen Mingsheng, Chun Hua, Li Jianping. Simulation of blast waves interaction for multiple cloud explosion[J]. Explosion And Shock Waves, 2016, 36(1): 81-86. doi: 10.11883/1001-1455(2016)01-0081-06

Citation:

Chen Mingsheng, Chun Hua, Li Jianping. Simulation of blast waves interaction for multiple cloud explosion[J]. Explosion And Shock Waves, 2016, 36(1): 81-86. doi: 10.11883/1001-1455(2016)01-0081-06

Chen Mingsheng, Chun Hua, Li Jianping. Simulation of blast waves interaction for multiple cloud explosion[J]. Explosion And Shock Waves, 2016, 36(1): 81-86. doi: 10.11883/1001-1455(2016)01-0081-06

Citation:

Chen Mingsheng, Chun Hua, Li Jianping. Simulation of blast waves interaction for multiple cloud explosion[J]. Explosion And Shock Waves, 2016, 36(1): 81-86. doi: 10.11883/1001-1455(2016)01-0081-06

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Simulation of blast waves interaction for multiple cloud explosion

doi: 10.11883/1001-1455(2016)01-0081-06

State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China

Received Date: 2014-07-18
Rev Recd Date: 2014-11-11
Publish Date: 2016-01-25

Abstract

Abstract

In this work, to study the overpressure distribution characteristics for multiple cloud explosion, we carried out a numerical simulation using LS-DYNA of the process of blast waves interaction for four non-circular cross-section clouds, with the computational results verified and compared with experimental data. Furthermore, based on our analysis of the peak overpressure located from 0 m to 20 m in the vertical direction and the processes of blast-waves interaction in the central area, we obtained the variation of the overpressure close to the ground versus the horizontal distances in four directions including 0°, 90°, 135° and 180°. Our results show that three blast waves occur in sequence over the central ground area, and there exists an increasingly higher pressure towards the central area. In the 45° vertical section, blast waves consist of incident wave, reflection wave and Mach wave.
- mechanics of explosion,
- peak overpressure,
- LS-DYNA,
- multiple clouds,
- interaction

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References(13)

References

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