第53卷第13期 2017年7月
机械工程学报
JOURNAL OF MECHANICAL ENGINEERING
DOI：10.3901/JME.2017.13.143
Vol.53
No.13
Jul.
2017
基于连续攻角的风力机翼型整体气动性能提高的
优化设计
汪泉1陈进2王君1孙金风1(1.湖北工业大学机械工程学院武汉430068： 2.重庆大学机械工程学院重庆400044)）
摘要：目前风力机翼型都是考虑单点设计攻角而开发出来，以追求局部气动性能的极大值，而忽略了连续设计攻角范围内翼型整体气动性能。结合翼型泛函集成理论及复杂型线表面曲率光滑连续性思想，提出连续攻角情况下风力机翼型廊线设计新方法，以解决翼型优化设计中其气动力难以收敛这一关键问题，并实现翼型整体气动性能的提高。将连续攻角情况下设计出来的WQ-B翼型与单点攻角情况下设计出来的WQ-A翼型进行了气动性能对比分析：并将WQ-B翼型系列应用到实际2MW 风力机叶片中。研究表明：相比WQ-A翼型及实际叶片，WQ-B新翼型系列及叶片整体性能均有显著提高。该研究不仅验证了该设计方法的可行性，而且也表明WQ-B翼型系列具有广泛的通用性及可置换性。
关键调：连续攻角；表面曲率光滑连续性；翼型泛函集成：叶片性能中图分类号：TK83：TH12
WindTurbineAirfoilOptimalDesignWithHighWholeAerodynamic
PerformanceConsideringContinuousAngleofAttack
WANGQuan'CHEN Jin?WANG Jun'SUN Jinfeng"
(1. School of Mechanical Engineering, Hubei University of Technology, Wuhan 430068; 2. College of Mechanical Engineering, Chongqing University, Chongqing 400044)
Abstract: the current airfoil design methods are based on one point of design angle of attack, in order to seek the local maximum aerodynamic performance without considering the whole high aerodynamic performance within continuous design angle of attack Based on airfoil functional integral and complicated profile curvature smooth continuity theory, a novel airfoil design method considering continuous angle of attack is presented. It not only can make the aerodynamic force convergence, but also make the whole aerodynamic performance increased. the aerodynamic comparison of the WQ-B airfoil series which are designed considering eeeeaaaseeee Meanwhile, the WQ-B airfoil series are used to a real 2 MW wind turbine blade. The results are showed that, compared to the WQ-A airfoil and the actual blade, the WQ-B airfoil series and new blade exhibit better whole performance. This study verifies the feasibility for the novel design method. Moreover, it also indicates that the WQ-B airfoil series have broad generality and substitutability.
Key words: continuous angle of attack; surface curvature smooth continuity; airfoil functional integral; blade performance
0前言
风力机翼型及叶片气动外形设计理论是决定风力机功率特性及载荷特性的根本因素，一直是各国学者研究的热点所在。目前叶片专用翼型廊线的
，国家自然科学基金资助项目(51405140)。20160909收到初赛，
20170305收到修改稿万方数据
设计都是在单点攻角情况下，基于特定的几何轮席来研究其空气动力学特性，并进行参数的设计和优化。TANGLER和SOMERs!基于Eppler理论及反设计方法设计出了35种用于各种工况条件下的 NREL-S系列翼型，该系列翼型具有良好的升阻比特性。TIMMER等基于混合设计方法设计出了相对厚度15%40%的DU系列风力机专用翼型，该系列翼型考虑了翼型之间的几何兼容性和深失速特