吉林大学学报(工学版) ›› 2011, Vol. 41 ›› Issue (增刊2): 231-235.

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Aerodynamics analysis of the airfoil when wings of swallow is gliding

CONG Qian, LIU Yu-rong, MA Yi, JIN Jing-fu   

  1. Key Laboratory for Bionic Engineering, Ministry of Education, Jilin University, Changchun 130022, China
  • Received:2011-03-08 Online:2011-09-30 Published:2011-09-30

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Abstract:

This paper reconstructs the wings include extended wings and swept wings,then get four spanwise airfoils when the swallow is gliding using a three-dimensional scanner.Based on the numerical simulation of the airfoil.get that swept wings have best aerodynamic characteristics then extended wings.The ratio of lift coefficient to drag coefficient is largest when the angels of attack(AOA) ranges from 3°to 5°,and the best aerodynamic performance airfoil on the whole is at spanwise fraction of 35%.Analysis shows that spanwise fraction of 35% of the Swept wings's leading edge on the small side,maximum thickness position near the trailing edge and airfoil linear curvature changes slowly,it's the reason why the swept wings have better aerodynamic characteristics.

Key words: engineering bionics, the wings of swallow, airfoil, aerodynamic characteristics

CLC Number: 

  • TB17


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