吉林大学学报(工学版) ›› 2016, Vol. 46 ›› Issue (6): 1940-1945.doi: 10.13229/j.cnki.jdxbgxb201606024

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Integrated design of aerodynamic and structural performance for wind turbine dedicated airfoil

CHEN Jin1, LI Song-lin1, 2, SUN Zhen-ye1, CHEN Gang1   

  1. 1.State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400044, China;
    2.Ministry of Technology of Dongfang Electric Wind Power Co., Ltd.,Deyang 618000, China
  • Received:2015-05-21 Online:2016-11-20 Published:2016-11-20

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Abstract: An integrated design method of aerodynamic and structural performance for wind turbine airfoil is proposed based on conformal transformation theory. In this method, the parameterized expression of an airfoil is presented by combing Theodorsen theory and B-spine curve. In order to optimize the aerodynamic and structural performance, an optimization mathematical model of the airfoil is established. The RFOIL software is used to solve the aerodynamic performance and a MATLAB code is used to solve the structural performance. The airfoil optimization is accomplished using an improved genetic algorithm. A new airfoil named CQUL210 with 21% maximum relative thickness is designed. Compared with the worldwide well known wind turbine airfoil DU93-W-210, of which the maximum relative thickness is also 21%, CQUL210 has higher aerodynamic performance both in smooth and rough transitions in the range of the design attack angle. Finite element analysis indicates that CQUL210 has higher structural performance than DU93-W-210. The method of this study can be applied to increase the wind capturing power and reduce the mass of the turbine blade.

Key words: mechanical design, wind turbine airfoil, integrated design, genetic algorithm, aerodynamic performance, structural performance

CLC Number: 

  • TK83
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