Firedamp flame propagation rules under obstacles are researched during the gas explosion process.The results show that obstacles have an important affection to the gas flame propagation speed.

• 该文对存在障碍物的瓦斯爆炸过程中的火焰传播规律进行了研究,结果表明:障碍物对火焰的传播速度具有重要影响。