Combining momentum theory and vortex theory, rotor circulation equation was deduced. The rotor down-wash flow field was calculated using generalized down-wash flow model.
结合动量理论和涡流理论，推导了桨叶环量方程，用广义尾流模型计算了旋翼下洗流场。
The similarity of rotor-wing down-wash flow field is studied.
研究了直升机旋翼下洗流场的相似性。
The similarity of rotor-wing down-wash flow field is studied.
研究了直升机旋翼下洗流场的相似性。
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