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Numerical simulation and study on the transmission law of flame and pressure wave of pipeline gas explosion

机译：管道瓦斯爆炸火焰和压力波传播规律的数值模拟研究

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摘要

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.
机译：基于FLUENT仿真软件，研究了管道爆炸中火焰和压力波的传播规律。事实证明，爆炸点的最大压力值不是整个爆炸过程的最大值。压力波的最大压力值首先在爆炸点附近降低，然后上升到峰值，然后逐渐下降。在气体爆炸传播过程中，有两个波将管道中的空间分成三个部分。数值模拟与实验结果基本吻合，模拟得出的结论为地下燃气管道防爆装置的研究和安装技术规程提供了理论依据。

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