Aerodynamic Power Efficiency Comparison of Various Micro-Air-Vehicle Layouts in Hovering Flight
Aerodynamic Power Efficiency Comparison of Various Micro-Air-Vehicle Layouts in Hovering Flight
复制标题
各种微型飞行器悬停飞行气动功率效率比较
DOI：
10.2514/1.j055221
复制
发表时间：
2017-04-01
期刊：
影响因子：
2.5
通讯作者：
Zhang Yanlai
中科院分区：
文献类型：
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作者：
Wu Jianghao;Zhou Chao;Zhang Yanlai
扑翼、旋转翼和扑翼是适用于能够悬停飞行的微型飞行器的可行机翼布局。数值研究表明，在给定的运动学和几何参数的情况下，在有或没有垂直力的约束下，哪种机翼布局可以在气动功率方面更有效。在典型情况下，当需要较小的垂向力时，旋翼布局是最有效的布局。然而，如果需要更大的垂向力，扑翼旋转翼由于其耦合效应，是唯一满足这两个方面要求的机翼布局。在相对较大的雷诺数(Re>；2000)、扑翼振幅(>；70°)和展弦比(=6)条件下，三种翼型布局的垂向力和气动功率效率与典型情况下的比较关系保持不变。然而，在相对较低的雷诺数(<；500)、拍打幅度(<；40°)或纵横比(=3)时，水平...
Flapping rotary wing, rotating wing, and flapping wing are feasible wing layouts applicable to micro-air-vehicles capable of hovering flight. A numerical study in this paper presents which wing layout can be more efficient in terms of aerodynamic power for the given kinematic and geometric parameters with or without the constraint of vertical force. In the cases under typical conditions, rotating wing layout is the most efficient one when a small vertical force is needed. However, if a much larger vertical force is required, flapping rotary wing is the only wing layout that fulfills the requirements of the two aspects due to its coupling effect. At relatively high Reynolds number (Re>2000), flapping amplitude (>70°), and aspect ratio (=6), comparative relationships from the cases under typical conditions among three wing layouts in terms of vertical force and aerodynamic power efficiency are kept unchanged. Nevertheless, at relatively low Re(<500)), flapping amplitude (<40°), or aspect ratio (=3), horizon...