• CN:11-2187/TH
  • ISSN:0577-6686

›› 2011, Vol. 47 ›› Issue (5): 143-148.

• 论文 • 上一篇    下一篇

基于混合改型理论的风力机翼型参数化方法

陆群峰;陈进;王旭东;张石强;程江涛   

  1. 重庆大学机械传动国家重点实验室;重庆工商大学机械工程学院
  • 发布日期:2011-03-05

Parameterization of Airfoil Profiles for Wind Turbines Based on Hybrid Modification Theory

LU Qunfeng;CHEN Jin;WANG Xudong;ZHANG Shiqiang;CHENG Jiangtao   

  1. State Key Laboratory of Mechanical Transmission, Chongqing University College of Mechanical Engineering, Chongqing Technology and Business University
  • Published:2011-03-05

摘要: 翼型的参数化表达方法是风力机翼型优化设计理论中最基础的部分。基于此,研究由基于泛函的儒科夫斯基变换理论建立的翼型参数化集成表达方法和SOBIECZKY尾缘改型方法在优化过程中的特点与不足,提出一种混合式尾翼型缘改型方法。建立采用最优保存策略的遗传算法优化模型,以Xfoil作为目标函数流体力学求解器,使用涉及的几种参数化方法,对RAE2822和NACA63215初始翼型进行优化设计。优化结果表明,混合式尾缘改型方法有效地克服了上述泛函变换方法和SOBIECZKY尾缘改型方法的不足之处,其与泛函变换方法的结合能够全面而有效地控制翼型,特别是尾缘部分的形状,优化所得的翼型具有良好的气动性能。

关键词: 参数化, 尾缘改型方法, 遗传算法, 翼型

Abstract: 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.

Key words: Airfoil profiles, Genetic algorithm, Parameterization, Trailing edge modification methods

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