Parameterization of airfoil profiles for wind turbines based on hybrid modification theory

被引：0

作者：

Lu Q. ^{[1
]}

Chen J. ^{[1
]}

Wang X. ^{[2
]}

Zhang S. ^{[1
]}

Cheng J. ^{[1
]}

机构：

[1] State Key Laboratory of Mechanical Transmission, Chongqing University

[2] College of Mechanical Engineering, Chongqing Technology and Business University

来源：

Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2011年 / 47卷 / 05期

关键词：

Airfoil profiles; Genetic algorithm; Parameterization; Trailing edge modification methods;

D O I：

10.3901/JME.2011.05.143

中图分类号：

学科分类号：

摘要：

Parameterization methods for airfoil profiles are most basic in optimization theories of wind turbine blades. A parameterization method based on Trajkovski transform and a trailing edge modification method named SOBIECZKY method are investigated. To overcome shortcomings of these methods, a hybrid trailing edge modification method is proposed. A genetic algorithm optimization model is constructed for the airfoil optimization by using these methods, which takes RAE2822 and NACA63215 as the initial airfoils, and also adopts optimal preservation strategy. Airfoil flow field analysis is made by using Xfoil. The results show that the hybrid modification method effectively overcomes shortcomings of Trajkovski transform and SOBIECZKY methods. Combined with the Trajkovski transform method, the hybrid modification method can control the airfoil profiles roundly and effectively, especially the trailing edge shape. The airfoil optimized from the combination shows a favorable aerodynamic performance. © 2011 Journal of Mechanical Engineering.

引用

页码：143 / 148

页数：5

共 12 条

[1]

Oyama A., Obayashi S., Nakahashi K., Real-coded adaptive range genetic algorithm and its application to aerodynamic design, Lecture Notes in Computer Science, 1917, 24, pp. 712-721, (2000)

[2]

Shi F., Computer Aided Geometric Design and Non-Uniform Rational B-Splines, (2001)

[3]

Fuglsang P., Bak C., Development of the RISø wind turbine airfoils, Wind Energy, 7, pp. 145-162, (2004)

[4]

Sobieczky H., Parametric airfoils and wings, Notes on Numerical Fluid Mechanics, 68, pp. 71-88, (1998)

[5]

Kulfan B.M., A universal parametric geometry representation method-"CST, 45th AIAA Aerospace Sciences Meeting and Exhibit, (2007)

[6]

Marco C., A study of the CST parameterization characteristics, 27th AIAA Applied Aerodynamics Conference, (2009)

[7]

Wang X., Chen J., Shen W., Et al., Study of the wind turbine airfoil representation method, China Mechanical Engineering, 20, 2, pp. 211-213, (2009)

[8]

Bloyl A.W., Durrant M.T., Aerodynamic characteristics of an aerofoil with small trailing edge flaps, Wind Engineering, 19, 3, pp. 167-172, (1995)

[9]

Harbeck M., Jameson A., Exploring the limits of shock-free transonic airfoil design, 43rd AIAA Aerospace Sciences Meeting and Exhibit, (2005)

[10]

Chen G., Wang X., Zhuang Z., Et al., Genetic Algorithm and Its Application, (1996)

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