Systematic experimental and theoretical studies of the propagation of shock and detonation waves in cylindrical tubes and planar channels with two U-shaped bends of limiting curvature were performed. It was demonstrated that U-shaped bends substantially facilitate detonation initiation in gases. The minimum shock wave velocity required to initiate the detonation of a stoichiometric propane-air mixture under normal conditions in a near-critical diameter tube with two U-shaped bends of limiting curvature was found to be similar to 800 m/s.
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机译：对冲击波和爆震波在具有两个U形极限曲率弯曲的圆柱管和平面通道中的传播进行了系统的实验和理论研究。事实证明，U形弯曲实质上促进了气体中的爆炸起爆。发现在正常条件下，在具有两个U形极限曲率弯曲的近临界直径管中，开始化学计量的丙烷-空气混合物爆炸所需的最小冲击波速度类似于800 m / s。
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