retreating blade stall 后行桨叶失速 ; 解决后行桨叶失速
The dynamic stall, occurred on the retreating blade of rotor wing in helicopter forward flight, produces much negative effect on the speed, load and the control of helicopter.
直升机前飞时旋翼后行桨叶的动态失速,对直升机的飞行速度、载重性能和飞行控制有很大的不利影响。
参考来源 - 直升机旋翼前缘下垂控制动态失速数值模拟研究·2,447,543篇论文数据，部分数据来源于NoteExpress
At 300kph, the air passing over the advancing blade could reach 1,100kph while that over the retreating blade would be about 500kph.
速度为300kph时，通过前面浆片的空气速度可达1100kph，而尾部浆片上的速度大约500kph。
But when flying forward the air passing over the blade that is advancing to the front of the helicopter (and so into oncoming air) provides more lift than the one that is retreating to the back.
但是当向前飞行时，它的旋翼将转向直升飞机的前方(如此一来，就变成朝向迎面而来的空气)，经过叶片上方的气流将比经过叶片背面的气流产生更大的升力。
应用推荐