Experimental investigation of some aspects of insect-like flapping flight aerodynamics for application to micro air vehicles
Experimental investigation of some aspects of insect-like flapping flight aerodynamics for application to micro air vehicles
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DOI：
10.1007/s00348-009-0661-2
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发表时间：
2009-05-01
影响因子：
2.4
通讯作者：
Bikowski, Z.
中科院分区：
文献类型：
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作者：
Ansari, Salman A.;Phillips, Nathan;Bikowski, Z.
昆虫般的扑翼飞行为室内应用的微型飞行器提供了一种节能和高度机动性的基础。通过对浸泡在种子水箱中的旋转翅膀进行粒子图像测速，研究了与昆虫翅膀运动的扫掠阶段有关的空气动力学的某些方面。这项工作的动机是缺乏关于昆虫般的拍打飞行的量化误差的数据，旨在通过提供实验装置的详细说明、量化测量中的不确定性并解释结果来填补这一空白。这些实验是在两个雷诺数-500和15000-分别考虑了许多昆虫和未来扑翼微型飞行器的比例时进行的。实验结果被用来描述显著的流动特征，并突出了与雷诺数有关的差异。特别是，研究了前缘涡在这些雷诺数下的行为，并验证了在计算流体力学计算中在较高雷诺数时观察到的开尔文-亥姆霍兹不稳定性的存在。
Insect-like flapping flight offers a power-efficient and highly manoeuvrable basis for micro air vehicles for indoor applications. Some aspects of the aerodynamics associated with the sweeping phase of insect wing kinematics are examined by making particle image velocimetry measurements on a rotating wing immersed in a tank of seeded water. The work is motivated by the paucity of data with quantified error on insect-like flapping flight, and aims to fill this gap by providing a detailed description of the experimental setup, quantifying the uncertainties in the measurements and explaining the results. The experiments are carried out at two Reynolds numbers-500 and 15,000-accounting for scales pertaining to many insects and future flapping-wing micro air vehicles, respectively. The results from the experiments are used to describe prominent flow features, and Reynolds number-related differences are highlighted. In particular, the behaviour of the leading-edge vortex at these Reynolds numbers is studied and the presence of Kelvin-Helmholtz instability observed at the higher Reynolds number in computational fluid dynamics calculations is also verified.