Passive maintenance of high angle of attack and its lift generation during flapping translation in crane fly wing

The Journal of Experimental Biology
Daisuke IshiharaT Niho

Abstract

We have studied the passive maintenance of high angle of attack and its lift generation during the crane fly's flapping translation using a dynamically scaled model. Since the wing and the surrounding fluid interact with each other, the dynamic similarity between the model flight and actual insect flight was measured using not only the non-dimensional numbers for the fluid (the Reynolds and Strouhal numbers) but also those for the fluid-structure interaction (the mass and Cauchy numbers). A difference was observed between the mass number of the model and that of the actual insect because of the limitation of available solid materials. However, the dynamic similarity during the flapping translation was not much affected by the mass number since the inertial force during the flapping translation is not dominant because of the small acceleration. In our model flight, a high angle of attack of the wing was maintained passively during the flapping translation and the wing generated sufficient lift force to support the insect weight. The mechanism of the maintenance is the equilibrium between the elastic reaction force resulting from the wing torsion and the fluid dynamic pressure. Our model wing rotated quickly at the stroke reversa...Continue Reading

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Citations

May 31, 2011·Integrative and Comparative Biology·Hiroto TanakaRobert J Wood
Jun 14, 2013·Journal of the Royal Society, Interface·Chang-kwon Kang, Wei Shyy
Oct 10, 2014·Journal of the Royal Society, Interface·Chang-kwon Kang, Wei Shyy
Jul 16, 2013·Bioinspiration & Biomimetics·Tien Van TruongHoon Cheol Park
Dec 19, 2019·Journal of the Royal Society, Interface·Kit Sum WuKenneth S Breuer
Jun 30, 2015·Bioinspiration & Biomimetics·Hiroto TanakaHao Liu
Dec 21, 2016·Bioinspiration & Biomimetics·D Ishihara, T Horie
Sep 19, 2015·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Tsevi Beatus, Itai Cohen
Jun 18, 2021·Bioinspiration & Biomimetics·Soudeh MazharmaneshSridhar Ravi

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