Physical characteristics of circular heavy gas cloud explosion

Xue Da-wen; Chen Zhi-hua; Han Jun-li

doi:10.11883/1001-1455(2014)06-0759-05

Volume 34 Issue 6

Dec. 2014

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Citation:

Xue Da-wen, Chen Zhi-hua, Han Jun-li. Physical characteristics of circular heavy gas cloud explosion[J]. Explosion And Shock Waves, 2014, 34(6): 759-763. doi: 10.11883/1001-1455(2014)06-0759-05

Citation:

Xue Da-wen, Chen Zhi-hua, Han Jun-li. Physical characteristics of circular heavy gas cloud explosion[J]. Explosion And Shock Waves, 2014, 34(6): 759-763. doi: 10.11883/1001-1455(2014)06-0759-05

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Physical characteristics of circular heavy gas cloud explosion

doi: 10.11883/1001-1455(2014)06-0759-05

Xue Da-wen^{1, 2},
Chen Zhi-hua^{1
,
,},
Han Jun-li^{1, 3}

1.
State Key Laboratory of Transient Physics, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China
2.
School of Shipping and Ports Architecture Engineering, Zhejiang Ocean University, Zhoushan 316022, Zhejiang, China
3.
Beijing Research Institute of Mechanical and Electrical Technology, Beijing 100012, China

Funds: Supported bythe National Natural Science Foundationof China (11272156)

More Information

Corresponding author: Chen Zhi-hua, chenzh@mail.njust.edu.cn
Received Date: 2013-04-03
Rev Recd Date: 2013-09-05
Publish Date: 2014-11-25

Abstract

Abstract

The explosion of the high pressure, dense gas (SF₆) in a circular shape was explored with the use of large eddy simulation (LES), the hybrid high-order schemes were employed to solve the LES equations.The simulated results show that while the shock wave exploding from SF₆ gas to air, the incident shock bifurcates into the transmitted shock and the reflected rarefaction wave.The Richtmyer-Meshkov instabilities occur as the transmitted shock accelerates the gas interface, the rarefaction wave moves inward first and converges at the origin, this will generate a strong circular reflected shock which makes the flow field become fully turbulent.
- mechanics of explosion,
- Richtmyer-Meshkov instability,
- large eddy simulation,
- SF₆

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References(17)

References

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