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壅塞
释义
壅塞
Encyclopedia
理学
跨声速流动
释
choking
壅塞
管道中某一截面处的流速达到声速时所发生的一种流动现象。其表现为:不论管道出口外压强如何降低,声速截面前的流速、压强等都不再发生变化,相应地流量也保持不变。壅塞有许多种,常见的有超声速风洞(见风洞)起动壅塞、飞机进气道壅塞、摩擦管壅塞和加热管壅塞等。
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