Numerical simulation on interaction between laneway surface and methane explosion

Ma Qiu-ju; Zhang Qi; Pang Lei

doi:10.11883/1001-1455(2014)01-0023-05

Volume 34 Issue 1

Mar. 2014

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Ma Qiu-ju, Zhang Qi, Pang Lei. Numerical simulation on interaction between laneway surface and methane explosion[J]. Explosion And Shock Waves, 2014, 34(1): 23-27. doi: 10.11883/1001-1455(2014)01-0023-05

Citation:

Ma Qiu-ju, Zhang Qi, Pang Lei. Numerical simulation on interaction between laneway surface and methane explosion[J]. Explosion And Shock Waves, 2014, 34(1): 23-27. doi: 10.11883/1001-1455(2014)01-0023-05

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Numerical simulation on interaction between laneway surface and methane explosion

doi: 10.11883/1001-1455(2014)01-0023-05

Ma Qiu-ju^{1
,
,},
Zhang Qi¹,
Pang Lei²

1.
State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
2.
Beijing Municipal Institute of Labour Protection, Beijing 100054, China

Funds: Supported by the National Natural Science Foundation of China (11372044)

Received Date: 2012-07-16
Rev Recd Date: 2013-01-08
Publish Date: 2014-01-25

Abstract

Abstract

To investigate the effects of the laneway surfaces on the methane explosion, the mechanism of the methane explosion was analyzed and a physical model for the laneway was proposed.Based on the above, numerical simulations were conducted to explore the effects of the inner surface roughness on the explosion propagation by modifying the drag coefficient and the turbulent length scale in the reaction model of the methane explosion.The simulated results display that the laneway surface can influence evidently the methane explosion in it.The higher the values of the drag coefficient and the turbulent length scale, the higher the peak overpressure of the methane explosion.And the simulated results correspond best to the experimental data when the drag coefficient and the turbulent length scale are 3 and 0.008, respectively.
- mechanics of explosion,
- methane explosion process,
- physical model of laneway,
- methane explosion,
- drag coefficient,
- turbulent length scale

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References(10)

References

[1]	Bjerketvedt D, Bakke J R, van Wingerden K. Gas explosion handbook[J]. Journal of Hazardous Materials, 1997, 52(1): 1-150. doi: 10.1016/S0304-3894(97)81620-2
[2]	Peraldi O, Knystautas R, Lee J H. Criteria for transition to detonation in tubes[J]. Symposium(International)on Combustion, 1988, 21(1): 1629-1637.
[3]	Pang L, Zhang Q, Wang T, et al. Influence of laneway support spacing on methane/air explosion shock wave[J]. Safety Science, 2012, 50(1): 83-89. doi: 10.1016/j.ssci.2011.07.005
[4]	曲志明.掘进巷道瓦斯爆炸数值及实验分析[J].湖南科技大学学报:自然科学版, 2008, 23(2): 9-14. Qu Zhi-ming. Numerical and experimental analysis of gas explosion in the excavation[J]. Journal of Hunan University of Science & Technology: Natural Science Edition, 2008, 23(2): 9-14.
[5]	Popat N R, Catlin C A, Arntzenb B J. Investigations to improve and assess the accuracy of computational fluid dynamic based explosion models[J]. Journal of Hazardous Materials, 1996, 45(1): 1-25. doi: 10.1016/0304-3894(95)00042-9
[6]	Janovsky B, Selesovsky P, Horkel J, et al. Vented confined explosions in Stramberk experimental mine and Auto-ReaGas simulation[J]. Journal of Loss Prevention in the Process Industries, 2006, 19(2/3): 280-287.
[7]	Salzano E, Marra F S, Russo G, et al. Numerical simulation of turbulent gas flames in tubes[J]. Journal of Hazardous Materials, 2002, 95(3): 233-247. doi: 10.1016/S0304-3894(02)00161-9
[8]	AutoReaGas: Reactive gas dynamics and blast analysis software user manual: Version 3.1[M]. Century Dynamics and TNO, 2002.
[9]	AutoReaGas: Interactive software theory manual[M]. Century Dynamics and TNO, 2002.
[10]	吴兵.矿井半封闭空间瓦斯爆燃过程热动力学研究[D].北京: 中国矿业大学(北京), 2003.