An Indicial-Polhamus Aerodynamic Model OfInsect-like Flapping Wings In Hover
An Indicial-Polhamus Aerodynamic Model OfInsect-like Flapping Wings In Hover
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DOI：
10.2495/1-84564-095-0/05
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发表时间：
2006-11
期刊：
影响因子：
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通讯作者：
C. B. Pedersen;Zbikowski
中科院分区：
文献类型：
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作者：
C. B. Pedersen;Zbikowski
作为克兰菲尔德大学（国防学院Shrivenham）正在进行的扑翼微型飞行器原型开发的一部分，悬停状态下的昆虫翼空气动力学模型已经开发并实现为MATLAB代码。该模型旨在更好地了解机翼上的各种空气动力效应，因此尽可能接近纯分析。该模型是模块化的，不同的影响分别处理。这种模块化有助于分析和洞察，并允许细化各个部分。然而，这是以相当大的简化为代价的，这需要经验验证。该模型从一个薄的2D刚性平板机翼截面周围的准定常无粘流开始，用Kutta-Joukowski条件和Polhamus的前缘吸力类比来解释粘性。尾流效应采用Kussner和瓦格纳的模型，按照Loewy最初使用的规定尾流形状进行建模。该模型已被验证对迪金森的Robofly的实验数据，并发现给可接受的精度。一些经验启发的改进波尔哈默斯效应的概述，但这些需要进一步的实证验证。
As part of the ongoing development of flapping-wing micro air vehicle prototypes at Cranfield University (Defence Academy Shrivenham), a model of insect-like wing aerodynamics in hover has been developed and implemented as MATLAB code. The model is intended to give better insight into the various aerodynamic effects on the wing, and therefore is as close to being purely analytical as possible. The model is modular, with the various effects treated separately. This modularity aids analysis and insight, and allows refinement of individual parts. However, it comes at the expense of considerable simplification, which requires empirical verification. The model starts from quasi-steady inviscid flow around a thin 2D rigid flat wing section, accounting for viscosity with the Kutta–Joukowski condition, and the leading edge suction analogy of Polhamus. Wake effects are modelled using the models of Kussner and Wagner, on a prescribed wake shape, as initially used by Loewy. The model has been validated against experimental data from Dickinson’s Robofly and found to give acceptable accuracy. Some empirically inspired refinements of the Polhamus effect are outlined, but these need further empirical validation.