吉林大学学报(工学版) ›› 2015, Vol. 45 ›› Issue (5): 1495-1501.doi: 10.13229/j.cnki.jdxbgxb201505018

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Bionic design of the small blade of horizontal axis wind turbines

TIAN Wei-jun1, WANG Ji-yue11, LI Ming11, CHEN Si-yuan2, LIU Fang-yuan1, CONG Qian1   

  1. 1.Key Laboratory of Engineering Bionics of Ministry of Education, Jilin University, Changchun 130022, China;
    2.College of Mechanical Science and Engineering,Jilin University,Changchun 130022,China
  • Received:2014-04-24 Online:2015-09-01 Published:2015-09-01

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Abstract: In order to improve the performance of wind turbine blades, a bionic design method was proposed based on the good aerodynamic characteristics of the swallow wing. The performance of the airfoil imitating the swallow wing was simulated and compared with the standard wind turbine airfoil using computational fluid dynamics technique. The results show that the bionic airfoil has higher lift coefficient and lift-drag ratio than the standard airfoil. The bionic blade was designed using the airfoil of the swallow. Numerical simulation and experiment for the wind turbine blade were carried out. Results show that the airfoil of the bionic blade has bigger pressure difference between the upper and lower surfaces, which can provide stronger lift. The efficiency of the bionic blade increases by 25% compared with that of the standard blade.

Key words: engineering bionics, wind turbine, bionic blade, airfoil, aerodynamic characteristic

CLC Number: 

  • TB17
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