Aerodynamic evaluation of wing shape and wing orientation in four butterfly species using numerical simulations and a low-speed wind tunnel, and its implications for the design of flying micro-robots
Aerodynamic evaluation of wing shape and wing orientation in four butterfly species using numerical simulations and a low-speed wind tunnel, and its implications for the design of flying micro-robots
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DOI：
10.1098/rsfs.2016.0087
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发表时间：
2017-01-06
期刊：
影响因子：
4.4
通讯作者：
Kovac, Mirko
中科院分区：
文献类型：
--
作者：
Ancel, Alejandro Ortega;Eastwood, Rodney;Kovac, Mirko
许多昆虫都很好地适应了长途迁徙，尽管小体型的飞行需要更大的能量消耗。为了优化下一代飞行微型机器人的机翼设计，我们利用数值模拟和2、3.5和5 m s（-1）的低速风洞分析了全尺寸蝴蝶的翅膀形状和翅膀方向。结果表明，最大翼展的机翼方向可以获得最佳的滑翔性能，升阻比高达6.28，而前翼向前展开可以增加最大升力，从而提高通用性。我们讨论了对飞行微型机器人的影响，以及结果如何有助于理解所测试蝴蝶物种的行为。
Many insects are well adapted to long-distance migration despite the larger energetic costs of flight for small body sizes. To optimize wing design for next-generation flying micro-robots, we analyse butterfly wing shapes and wing orientations at full scale using numerical simulations and in a low-speed wind tunnel at 2, 3.5 and 5 m s(-1). The results indicate that wing orientations which maximize wing span lead to the highest glide performance, with lift to drag ratios up to 6.28, while spreading the fore-wings forward can increase the maximum lift produced and thus improve versatility. We discuss the implications for flying micro-robots and how the results assist in understanding the behaviour of the butterfly species tested.