Numerical Simulation Analysis of the Effects of Flight Angle and Bend-fold on Bird-like Flapping-wing Air Vehicle

Authors

Yonggang Yang, School of Aeronautics Engineering, Civil Aviation University of China, Tianjin 300300, China;
Hanping Su, School of Aeronautics Engineering, Civil Aviation University of China, Tianjin 300300, China;
Xindong Gu, School of Aeronautics Engineering, Civil Aviation University of China, Tianjin 300300, China;
Yanqing Chen, School of Aeronautics Engineering, Civil Aviation University of China, Tianjin 300300, China;

Abstract

Abstract: Aiming at the multi-parameter coupling problems of flapping-wing flight of birds, a 3D model of bird-like flapping-wing air vehicle (FAV) is established based on overall dimensions of bird. A multi-degree-of-freedom motion model of “swing-torsion-bending and folding” is built. The XFlow is used to analyze the effects of flight angle and flapping-wing bending-folding. Research results show that peak values of lift coefficient and drag coefficient change with different flight angles; at the zero flight angle, minimum mean drag coefficient and maximum lift-drag ratio will be achieved and avail to level flight. Caused by the bending-folding effect, violent vortex and negative pressure are produced on the upper surface of outer wings, which will improve lift-drag ratio and impact drag coefficient less.

Recommended Citation

Yang, Yonggang; Su, Hanping; Gu, Xindong; and Chen, Yanqing (2019) "Numerical Simulation Analysis of the Effects of Flight Angle and Bend-fold on Bird-like Flapping-wing Air Vehicle," Journal of System Simulation: Vol. 30: Iss. 5, Article 20.
DOI: 10.16182/j.issn1004731x.joss.201805020
Available at: https://dc-china-simulation.researchcommons.org/journal/vol30/iss5/20

First Page

1781

Revised Date

2016-07-29

DOI Link

https://doi.org/10.16182/j.issn1004731x.joss.201805020

Last Page

1786

CLC

V224

Recommended Citation

Yang Yonggang, Su Hanping, Gu Xindong, Chen Yanqing. Numerical Simulation Analysis of the Effects of Flight Angle and Bend-fold on Bird-like Flapping-wing Air Vehicle[J]. Journal of System Simulation, 2018, 30(5): 1781-1786.

DOI

10.16182/j.issn1004731x.joss.201805020