形成:飞机蓄积起足够的速度后,拉起机头进入跃升,但同时发动机却人为地处于慢车状态,使得飞机的推重比小于一。由于地球引力的作用,飞机的速度不断下降,当飞机的空速指零后,飞机保持机头继续向上,尾部朝下,并以加速速率下“冲”。
试验研究和工程运行实践表明:合理地布置宽尾墩,可由较简单的设施获得良好的消能防冲效果。
The test, research and operation practice prove that laying out rationally the wide tail trajectory is able to gain good dissipation and erosion control effect.
最后,连同通道区和尾迹区一起,求得了包括冲波影响的叶栅的总损失系数。
Finally, Over-all loss coefficients in the cascade are obtained, considering effects of the shock wave passage and wake.
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