| 近地飞行时旋翼的气动力及桨叶挥舞运动 |
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| 引用本文： | 康宁,孙茂.近地飞行时旋翼的气动力及桨叶挥舞运动[J].航空学报,1997,18(6):709-711. |
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| 作者姓名： | 康宁 孙茂 |
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| 作者单位： | 北京航空航天大学流体力学研究所 |
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| 摘 要： | 基于对旋翼近地飞行时流场的N-S方程计算，计算并讨论了近地飞行时，旋翼拉力、扭矩系数及桨叶挥舞角随前进比、离地高度的变化情况。结果表明，在地面涡出现的飞行条件下，与无地面效应的情形相比，旋翼拉力和侧倾角有显著变化。
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| 关 键 词： | 旋翼气动力 桨叶挥舞运动 地面效应 |
AERODYNAMIC FORCES AND BLADE FLAPPING MOTION OF A ROTOR IN FORWARD FLIGHT WITH GROUND EFFECTS |
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| Kang Ning,Sun Mao.AERODYNAMIC FORCES AND BLADE FLAPPING MOTION OF A ROTOR IN FORWARD FLIGHT WITH GROUND EFFECTS[J].Acta Aeronautica et Astronautica Sinica,1997,18(6):709-711. |
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| Authors: | Kang Ning Sun Mao |
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| Institution: | Institute of Fluid Mechanics, Beijing University of Aeronautics and Astronautics, Beijing, 100083 |
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| Abstract: | Based on the previous computation for a rotor flow field in forward flight near ground, the thrust coefficient, torque coefficient and blade flapping angles are calculated and analysed against the advance ratios and flight heights. The results show that the ground effects play a very important role in the thrust coefficient and blade lateral tilt angle. |
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| Keywords: | rotor aerodynamic forces blade flapping motion ground effects |
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