超大型风力机叶片主要出功段抗污高效翼型设计研究  

Study on the Design of Anti-contaminating High-performance Airfoil at the Main Power Output Section of Super Large Wind Turbine Blade

作　　者：张水香[1] 黄宸武[1] 范志军 廖斯源 敖焮柯 钟永强 ZHANG Shui-xiang;HUANG Chen-wu;FAN Zhi-jun;LIAO Si-yuan;AO Xin-ke;ZHONG Yong-qiang(College of Physics and Engineering Technology,Yichun University,Yichun 336000,China)

机构地区：[1]宜春学院物理科学与工程技术学院,江西宜春336000

出　　处：《宜春学院学报》2021年第9期1-4,38,共5页Journal of Yichun University

基　　金：国家自然科学基金项目(项目编号:51366013)。

摘　　要：风力机朝着大型化方向发展,20MW以上海上超大型风力机即将面世。叶片r>0.6R段为风力机出功的主要部位,该部位翼型气动性能的优劣直接影响着发电量,然而叶片表面污染会引起气动性能下降,导致发电量减少,因此在设计叶片主要出功段翼型时必须考虑翼型的抗污特性。本文根据20MW超大型风力机结构要求和运行工况,以风力机叶片常用翼型DU93-W-210和DU91-W2-250为基本翼型,利用XFOIL几何造型工具,通过在小攻角附着流动条件计算精度较高的RFOIL软件,计算气动性能参数和抗污特性评价指标值,在Re=1×10^(7)和Re=2×10^(7)下分别设计和筛选得到了叶片0.8R~1.0R和0.6R~0.8R区域抗污特性和综合气动性能俱优的YCU20-W-210和YCU20-W-250两个翼型,可为超大型风力机叶片翼型设计提供借鉴和选用。Wind turbines are developing toward large scale.Super large offshore wind turbines with the power of 20MW will be available soon.The blade with r>0.6R is the main output power position in which airfoil aerodynamic performance directly affects the power generation.However,the surface contamination of blade reduces aerodynamic performance and electric energy production.Therefore,the anti-contaminating characteristic must be considered when designing the main output power airfoils.According to the structural requirements and operating conditions of 20MW super large wind turbine,in this paper,the blade airfoils are designed based oncommon airfoils DU93-W-210 and DU91-W2-250 by using XFOIL geometric modeling tools and RFOIL software with high calculation accuracy for the aerodynamic performance parameters and the anti-contaminating characteristic evaluation index values under small angle of attack or attached flow condition.Two airfoils of YCU20-W-210 and YCU20-W-250 with excellent anti-contaminating characteristic and integrated aerodynamic performance in 0.8R-1.0R and 0.6R-0.8R regions of the blade are designed and chosen out at Re=1×10^(7) and Re=2×10^(7) respectively.It provides the reference and selection for the airfoil design of super large wind turbine blade.

关 键 词：超大型风力机 叶片 翼型 气动性能 抗污特性 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]