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

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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

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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

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