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Experimental study and theoretical analysis on shock wave induced by abnormal structure of tube

机译:管道异常结构引起的冲击波实验研究与理论分析

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The conditions on which the shock wave is produced are studied on the basis of experiment. The study shows that the sharp change of cross section has great influence on the production of shock wave; as the cross section changes sharply (increase or decrease), additional turbulent flow is produced, and then cause the propagation speed of flame increase drastically and induce the shock wave. The accelerating coil mounted in the tube with sharply changing section will raise the degree of turbulence and the propagation speed of flame, cause the locations where the shock wave produces and reaches the maximum move forward, and enhance the intensity of shock wave. 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产生冲击波的条件。该研究表明,横截面的急剧变化对冲击波的产生有很大影响;随着横截面急剧变化(增加或减少),产生额外的湍流,然后使火焰升高的传播速度大幅增加并引起冲击波。安装在管中的加速线圈具有急剧换置的部分将提高湍流程度和火焰的传播速度,导致冲击波产生并达到最大向前移动的位置,并增强冲击波的强度。这些结果对于导致防止瓦斯爆炸,降低气体爆炸的力量很大。

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