Simulation on magnetically-driven one-sided flyer plate experiments

KAN Mingxian; WANG Ganghua; XIAO Bo; DUAN Shuchao; ZHANG Zhaohui

doi:10.11883/bzycj-2019-0103

Volume 40 Issue 3

Mar. 2020

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KAN Mingxian, WANG Ganghua, XIAO Bo, DUAN Shuchao, ZHANG Zhaohui. Simulation on magnetically-driven one-sided flyer plate experiments[J]. Explosion And Shock Waves, 2020, 40(3): 033304. doi: 10.11883/bzycj-2019-0103

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KAN Mingxian, WANG Ganghua, XIAO Bo, DUAN Shuchao, ZHANG Zhaohui. Simulation on magnetically-driven one-sided flyer plate experiments[J]. Explosion And Shock Waves, 2020, 40(3): 033304. doi: 10.11883/bzycj-2019-0103

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Simulation on magnetically-driven one-sided flyer plate experiments

doi: 10.11883/bzycj-2019-0103

Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621999, Sichuan, China

Received Date: 2019-04-01
Rev Recd Date: 2019-11-18

Available Online: 2020-02-25

Publish Date: 2020-03-01

Abstract

Abstract

The numerical simulation of magnetically driven one-sided flyer plate experiment usually does not take into account the influences of cathode motion and ablation width in the thickness direction on the boundary magnetic field. Hence, one-sided computational model was usually applied to simulate magnetically driven one-sided flyer plate experiment. In order to understand the reason why magnetically driven one-sided flyer plate experiment can be simulated by one-sided computational model, magnetically driven one-sided flyer plate experiment (experiment PTS-061 with a 0.972-mm-thick aluminum flyer plate and experiment PTS-064 with a 1.041-mm-thick aluminum flyer plate) were simulated by two-sided computational model. In the experiments with experiment PTS-061 and PTS-064, displacement of thin flyer plate current-loading surface increases with time; displacement of thick cathode current-loading surface does not increases with time, and remains basically unchanged with small displacement in the middle and late stage of experiments. At the end of experiment PTS-061, displacement of thin flyer plate current-loading surface is 4.9 mm, and displacement of thick cathode current-loading surface is only 1.7 mm. At the end of experiment PTS-064, displacement of thin flyer plate current-loading surface is 4.1 mm, and displacement of thick cathode current-loading surface is only 0.9 mm. The reason of one-sided computational model can be adopted in magnetically driven one-sided flyer plate experiment is not that cathode plate position remains unchanged, but instead that cathode current-loading surface has smaller displacement remaining basically unchanged in the middle and later stage of experiments, and the displacement of thin flyer plate current-loading surface has a greater influence on the boundary magnetic field that of thick cathode current-loading surface in the late stage of experiments.
- magnetically driven one-sided flyer plate experiment,
- magneto-hydrodynamics,
- one-sided computational model,
- free-surface velocity

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References(19)

References

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