Join the ISBE
Announcement
2020-04-08
On February 7, 2020, a medical rescue team from the Second Hospital of Jilin University, led by Vice Dean, Prof. YanguoQin, left Changchun for Wuhan to save the patients suffering from the COVID-1…
2020-03-27
1. Nanomaterials with enzyme-like characteristics (nanozymes): next-generation artificial enzymes (II) [Times Cited: 232] By: Wu, Jiangjiexing; Wang, Xiaoyu; Wang, Quan; et al. CHEMICAL S…
Publications
[2019-Vol.16-Issue 3]Aerodynamic Characteristics of Conventional and Innovative High Lift Swept Wings
Post: 2019-06-05 16:39  View:595

Journal of Bionic Engineering

May 2019, Volume 16, Issue 3, pp 432–441| Cite as

Mojtaba Ramezani VoloojerdiMahmoud ManiEmail author

Aerospace Engineering DepartmentAmirkabir University of TechnologyTehranIran

Abstract

The new bird inspired wing sweep was introduced and compared with straight and conventional swept wings in gliding flight by an experimental test setup. Due to the similarity with the birds’ wing, all test models have S1223 airfoil. Swept models inspired from the bird consist of two parts: the straight part near the root and the swept part near the tip. Aerodynamic forces on each wing were measured from 0° to 24° angles of attack and Reynolds numbers of 4.3×104, 8.6×104, 1.3×105, and 1.7×105. Wind tunnel test results show that wings with an innovative sweep at α > 0 have more lift for Reynolds numbers between 4.3×104 and 8.6×104. Also, innovative sweep increases the stall angle, and the wing did not stall until α = 24° for Reynolds between 1.3×105 and 1.7×105. An increase in lift and having sufficient aerodynamic performance in low Reynolds numbers for birds’ inspired wing sweep in gliding flight may be the answer to why the wing sweep of birds is not like conventional sweeps.

Keywords

bio-inspired wing wing sweep wing aerodynamics bird wing low Reynolds number 

Full text is available at :

https://link.springer.com/article/10.1007/s42235-019-0035-2

Address: C508 Dingxin Building, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China
Copyright © 2020 International Society of Bionic Engineering All Rights Reserved
吉ICP备11002416号-1