Table of Content

Open Access

ARTICLE

Aerodynamic Performance of DragonflyWing with Well-designed Corrugated Section in Gliding Flight

Zilong Zhang1, Yajun Yin2, Zheng Zhong1,3, Hongxiao Zhao1
Tongji University, Shanghai, China.
Tsinghua University, Beijing, China.
Corresponding author. E-mail: zhongk@tongji.edu.cn

Computer Modeling in Engineering & Sciences 2015, 109-110(3), 285-302. https://doi.org/10.3970/cmes.2015.109.285

Abstract

Dragonflies possess the highly corrugated wings which distinguish from the ordinary airfoils. To unlock the secrets of the dramatic flight ability of dragonflies, it will be of great significance to investigate the aerodynamic contribution of the corrugations. In this paper, a group of corrugated airfoils were specially designed based on the geometrical characteristics of a typical dragonfly wing. The two-dimensional Navier-Stokes equations were solved using the finite volume method, and the coefficients of lift and drag of the studied airfoils were calculated and compared with those of a flat airfoil and a NACA0008 airfoil. The obtained numerical results illustrated that well-designed corrugated airfoils can enhance the lift-drag ratio in the condition of steady flow and maintain the steadiness of the flow field at low Reynolds numbers (500-12000). To approach the optimized state, corrugation amplitude could be considered as a key parameter to describe the irregularities of the corrugated wings. These results will inspire the design of MAVs.

Keywords

Dragonfly, corrugation, low Reynolds number, CFD, MAV.

Cite This Article

Zhang, Z., Yin, Y., Zhong, Z., Zhao, H. (2015). Aerodynamic Performance of DragonflyWing with Well-designed Corrugated Section in Gliding Flight. CMES-Computer Modeling in Engineering & Sciences, 109-110(3), 285–302.



This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
  • 780

    View

  • 795

    Download

  • 0

    Like

Share Link

WeChat scan