Numerical simulation of intense blast wave reflected on rigid ground

YAO Chengbao; WANG Hongliang; PU Xifeng; SHOU Liefeng; WANG Zhihuan

doi:10.11883/bzycj-2018-0287

Volume 39 Issue 11

Nov. 2019

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YAO Chengbao, WANG Hongliang, PU Xifeng, SHOU Liefeng, WANG Zhihuan. Numerical simulation of intense blast wave reflected on rigid ground[J]. Explosion And Shock Waves, 2019, 39(11): 112201. doi: 10.11883/bzycj-2018-0287

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YAO Chengbao, WANG Hongliang, PU Xifeng, SHOU Liefeng, WANG Zhihuan. Numerical simulation of intense blast wave reflected on rigid ground[J]. Explosion And Shock Waves, 2019, 39(11): 112201. doi: 10.11883/bzycj-2018-0287

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Numerical simulation of intense blast wave reflected on rigid ground

doi: 10.11883/bzycj-2018-0287

1.
School of Mathematical Sciences, Peking University, Beijing 100871, China
2.
Northwest Institute of Nuclear Technology, Xi’an 710024, Shaanxi, China

Received Date: 2018-08-08
Rev Recd Date: 2018-11-01
Publish Date: 2019-11-01

Abstract

Abstract

In order to predict the intense blast wave in air, a multi-material numerical scheme is proposed in two-dimensional cylindrical coordinates on Eulerian grids, which can handle the blast wave problems with high ratio in initial density and pressure. Combined with the adaptive mesh technique, the propagation of blast wave produced by a 1 kt TNT intense explosion is simulated, and the effects of real gas equation of state and the nonuniform atmosphere are taken into account. The calculated blast wave parameters on the ground, such as peak overpressures and impulses, agree well with the experimental data in a wide space range, and the influences of heights of burst are analyzed.
- air blast,
- multi-material flow,
- mesh adaption,
- shock reflection,
- height of burst

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References(23)

References

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