›› 2012, Vol. 42 ›› Issue (05): 1163-1167.

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Bionic design and experimental research on blade of small axial fan based on characteristics of wings of typical birds

LIAO Geng-hua1,2, HU Qin-chao1,2, YANG Ying1,2, HAN Zhi-wu1,2, REN Lu-quan1,2, LIU Qing-ping1,2   

  1. 1. Key Laboratory for Bionics Engineering, Jilin University, Changchun 130022, China;
    2. College of Biological and Agricultural Engineering, Jilin University, Changchun 130022, China
  • Received:2011-11-03 Online:2012-09-01 Published:2012-09-01

Abstract: The surface characteristics of the wings sparrow hawk and long-eared owl were extracted and used to optimize the blade of small axial fan to improve aerodynamic performance of the fan. The best fan was selected from eight bionic axial fans using CFD method. Computer simulation analysis and aerodynamic experiments show that the flow-static pressure curve of the bionic blade fan is remarkable better than that of prototype fan. The maximum mass flow rate of the bionic fan is 6.1% higher than that of prototype fan and the maximum static pressure is 7% higher, respectively. Experiments also show that the V-section is better than arc-section of the blade. The study provides a preliminary basis for optimizing the parameters of the blade of bionic fan.

Key words: engineering bionics, small axial fan, blade bionic, aerodynamic performance

CLC Number: 

  • TB17
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