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首页> 外文会议>Progress in Safety Science and Technology vol.4 pt.A >Study on Effects of Reflected Shock Wave on Flame Propagation in Gas Explosion
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Study on Effects of Reflected Shock Wave on Flame Propagation in Gas Explosion

机译：反射冲击波对瓦斯爆炸火焰传播影响的研究

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Based on experiment, the effects of reflected wave from the end wall of gas explosion chamber on flame propagation were studied. The results show that the reflected wave compresses the gas to a high temperature so as to contribute to the acceleration of flame propagation, on the other hand, the velocity of wake caused by reflected shock wave is in the opposite direction to flame propagation so as to suppress it. Under the effects of the opposite wake, the flame will reduce its velocity as it reaches the middle and rear section of the chamber; and then, similar to the initial gas explosion flame, it accelerates again. As the reflected wave is of high intensity, the suppression is boosted and even cause extinction of the flame. These results are significant to guide the prevention of gas explosion in field and reduce the power of gas explosion.
机译：在实验的基础上，研究了气体爆炸室端壁反射波对火焰传播的影响。结果表明，反射波将气体压缩到高温，从而促进了火焰的传播，另一方面，反射冲击波引起的尾流速度与火焰的传播方向相反，因此压制它。在相反的尾流的作用下，火焰到达燃烧室的中部和后部时会降低其速度。然后，类似于最初的气体爆炸火焰，它再次加速。由于反射波强度高，抑制效果增强，甚至导致火焰熄灭。这些结果对指导现场预防瓦斯爆炸和降低瓦斯爆炸的功率具有重要意义。

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