Numerical analysis and redesign of magnetically driven aluminum flyer plateon PTS accelerator

Kan Mingxian; Yang Long; Duan Shuchao; Wang Ganghua; Xiao Bo; Zhang Zhaohui; Wang Guilin

doi:10.11883/1001-1455(2017)05-0793-06

Volume 37 Issue 5

Jul. 2017

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Kan Mingxian, Yang Long, Duan Shuchao, Wang Ganghua, Xiao Bo, Zhang Zhaohui, Wang Guilin. Numerical analysis and redesign of magnetically driven aluminum flyer plateon PTS accelerator[J]. Explosion And Shock Waves, 2017, 37(5): 793-798. doi: 10.11883/1001-1455(2017)05-0793-06

Citation:

Kan Mingxian, Yang Long, Duan Shuchao, Wang Ganghua, Xiao Bo, Zhang Zhaohui, Wang Guilin. Numerical analysis and redesign of magnetically driven aluminum flyer plateon PTS accelerator[J]. Explosion And Shock Waves, 2017, 37(5): 793-798. doi: 10.11883/1001-1455(2017)05-0793-06

Citation:

Kan Mingxian, Yang Long, Duan Shuchao, Wang Ganghua, Xiao Bo, Zhang Zhaohui, Wang Guilin. Numerical analysis and redesign of magnetically driven aluminum flyer plateon PTS accelerator[J]. Explosion And Shock Waves, 2017, 37(5): 793-798. doi: 10.11883/1001-1455(2017)05-0793-06

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Numerical analysis and redesign of magnetically driven aluminum flyer plateon PTS accelerator

doi: 10.11883/1001-1455(2017)05-0793-06

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

Received Date: 2016-01-29
Rev Recd Date: 2016-05-17
Publish Date: 2017-09-25

Abstract

Abstract

In the shot PTS-151 experiments the maximum velocity measured on the magnetically driven aluminum flyer plate with a thickness of 370 μm was 18 km/s, while that with a thickness 482 μm was 19 km/s. In this work, the data from the shot PTS-151 experiments on PTS were simulated and analyzed using the two dimensional magneto-hydro dynamics code MDSC2. The numerical simulation shows that the meaning of the maximum velocity measured in the shot PTS-151 should be different from that of the maximum velocity as reported in the related literatures where, as the free surface of the flyer plate was not ablated during the experiment, the maximum velocity measured was the flyer plate's free surface velocity. In the shot PTS-151 experiments the free surface was ablated in the measurement of the two flyer plates, and therefore the maximum velocity measured by VISAR was the velocity of the last solid surface inside them just before they were totally ablated. In our simulation, if the initial free surface is not ablated, the maximum initial free surface velocity calculated is 7 km/s with the 370 μm thick flyer plate and 11.8 km/s with the 482 μm thick flyer plate, far below the velocity actually measured in the shot PTS-151 experiments. A new flyer plate was re-designed on the basis of the current condition of the shot PTS-151, with 680 μm as the optimal thickness, which would both prevent the free surface from ablation and achieve the maximum velocity of 17.5 km/s.
- PTS accelerator,
- magnetically driven flyer plate,
- two dimensional magnetically driven simulation code,
- solid reflecting surface,
- free surface velocity

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References(15)

References

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