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Numerical simulation and study on the transmission law of flame and pressure wave of pipeline gas explosion |
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| Authors: | Huang ZhianLiu Zhigang Chen ShengguoZhang Yansong Zhang Yinghua |
| Institution: | a State Key Laboratory of High-Efficient Mining and Safety of Metal Mines (University of Science and Technology Beijing), Ministry of Education, Beijing 100083, China b Chongqing Gas Group Co. Ltd., Chongqing 400037, China c Chongqing Branch of China Coal Research Institute, Chongqing 400037, China |
| Abstract: | Based on FLUENT simulation software, the laws of transmission of flame and pressure wave in pipeline gas explosion were studied. It turned out that, the maximum pressure value of the explosion point is not the maximum value of the whole explosion process; the maximum pressure value of the pressure wave lowers firstly near the explosion point, then rises to a peak, and then drops gradually; two waves divide the space in the pipeline into three sections during the gas explosion transmission. The result is basically consistent between numerical simulation and experiment, and the conclusion from the simulation provides theoretical basis for research on explosion-proof and suppression devices for underground gas pipeline, as well as for technical regulations of installation. |
| Keywords: | Pipeline Gas explosion Flame Pressure wave Transmission laws FLUENT |
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