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智能机翼旋转和尾翼旋使蚊子能够高频飞行

Richard J Bomphrey¹, Toshiyuki Nakata^1,2, Nathan Phillips¹

¹Structure and Motion Laboratory, Royal Veterinary College, University of London, Hatfield AL9 7TA, UK.

|March 30, 2017

概括

蚊子通过独特的旋转机制产生升力, 这些新奇的空气动力学力量,包括捕捉和旋转阻力,允许使用浅冲动进行高频动.

科学领域:

航空动力学
昆虫飞行的生物力学
流体动力学

背景情况:

蚊子具有独特的翅膀动力学,在高频率 (>800赫兹) 和低幅度上挥舞.
这与典型的昆虫飞行形成鲜明对比,

研究的目的:

研究蚊子的自由飞行机翼动力学.
通过计算流体动力学和实验验证,阐明蚊子飞行的空气动力学机制.

主要方法:

记录蚊子自由飞行的机翼动态.
用计算流体动力学 (CFD) 和超设网格解决纳维埃-斯托克斯方程.
用体内流量测量验证CFD结果.

主要成果:

蚊子使用前端,后端,以及旋转阻力.
这些机制,特别是引和旋转阻力,在很大程度上独立于机翼速度.
已识别的机制非常适合蚊子翅膀的高比例和浅幅.

结论:

蚊子的飞行依赖于机动力学新的力量,
这些旋转机制对于体重支至关重要,与其他昆虫或飞机的旋转机制不同.
了解这些原理可以了解昆虫的飞行和生物工程.

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