Simulation Analysis of Influence of Spoiler Structural Parameters on Shock Wave Attenuation Characteristics

ZHAO Beilei; ZHAO Jiguang; CUI Cunyan; LIU Ningyuan; WANG Yan; XIN Tengda; WANG Yaqi

doi:10.11858/gywlxb.20170585

Volume 32 Issue 2

Jan 2018

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Chinese Journal of High Pressure Physics > 2018 > 32(2): 025202.

BAI Jing-Song, HUA Jing-Song, Shen Qiang, DAI Cheng-Da, LI Ping, TAN Hua, ZHANG Lian-Meng. Numerical Simulation of the Experimental Hypervelocity Launcher[J]. Chinese Journal of High Pressure Physics, 2004, 18(2): 116-122 . doi: 10.11858/gywlxb.2004.02.004

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ZHAO Beilei, ZHAO Jiguang, CUI Cunyan, LIU Ningyuan, WANG Yan, XIN Tengda, WANG Yaqi. Simulation Analysis of Influence of Spoiler Structural Parameters on Shock Wave Attenuation Characteristics[J]. Chinese Journal of High Pressure Physics, 2018, 32(2): 025202. doi: 10.11858/gywlxb.20170585

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Simulation Analysis of Influence of Spoiler Structural Parameters on Shock Wave Attenuation Characteristics

doi: 10.11858/gywlxb.20170585

ZHAO Beilei^{1, 2
,},
ZHAO Jiguang³,
CUI Cunyan²,
LIU Ningyuan^{1, 2},
WANG Yan^{1, 2},
XIN Tengda^{1, 2},
WANG Yaqi⁴

1.
Company of Postgraduate Management, Equipment Academy, Beijing 101416, China
2.
Department of Aerospace Equipment, Equipment Academy, Beijing 101416, China
3.
Equipment Development Strategy Research Institute, Equipment Academy, Beijing 101416, China
4.
Beijing Space Information Ralay and Transmission Technology Research Center, Beijing 100094, China

Received Date: 26 May 2017
Rev Recd Date: 26 Jun 2017

Abstract

Abstract

Setting spoilers in the tunnel is an effective way to accelerate its shock wave attenuation.In order to investigate the influence of the spoiler structural parameters on its shock wave's attenuation, numerical simulation was carried out using the ANSYS/LS-DYNA finite element software.First, based on the fluid-solid coupling algorithm, the equal scale model of Schardin's experiment was established.The simulation results were found to be in good agreement with the experimental results, which verified the validity of the simulation model.Then the numerical method was used to investigate the influence of the spoiler thickness, inclination angle and interval on the shock wave attenuation in a silo tunnel when the rectangular spoiler width was a constant.The results show that when the other parameters remain the same, with the increase of the spoiler thickness, the overpressure attenuation of the shock wave becomes increasingly more obvious.When the spoiler thickness is 40 cm, the spoiler with the inclination angle of 105° and the interval of 6 m is the most beneficial condition for the shock wave attenuation.These results can provide valuable reference for the design of the tunnel protection.
- spoiler,
- shock wave,
- attenuation,
- numerical simulation

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References(12)

References

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Simulation Analysis of Influence of Spoiler Structural Parameters on Shock Wave Attenuation Characteristics

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Simulation Analysis of Influence of Spoiler Structural Parameters on Shock Wave Attenuation Characteristics

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