李德顺,李仁年,杨从新,王秀勇,杨瑞,李银然,朱宇
LI De-shun 1,LI Ren-nian 1,YANG Cong-xin 1,WANG Xiu-yong,1 YANG Rui 1,LI Yin-ran 1,ZHU Yu 2 (1.Lanzhou University of Technology

• 1:兰州理工大学
• 2:上汽依维柯红岩商用车有限公司

摘要(Abstract)：

雷诺数是影响翼型气动特性的主要参数之一,当雷诺数在5×105~1×107范围内变化时,基于N-S控制方程,对S827翼型在攻角α为-14°~45°范围内变化时的气动特性进行数值计算,研究了雷诺数对该翼型的升力特性、阻力特性、最大升力系数、最大升阻比、流动分离特性、失速特性等气动特性的影响。
Based on N-S control equation,the unsteady flowfield of the NREL S series airfoil S827 is simulated.The lift and drag coefficients and pressure distribution are obtained at the different angle of attack from-14°to 45°at the time when Reynolds number change from 5×10 5 to 1×10 7.And the effect on Reynolds number is studied on aerodynamic characteristics,such as the characteristics of lift coefficient and drag coefficient、the maximum lift coefficient、the maximum ratio of lift coefficient and drag coefficient、the characteristics of the fluid separation、stall properties and so on.

关键词(KeyWords)： 雷诺数;风力机专用翼型;气动性能
reynolds number;special airfoil for wind turbine;aerodynamic characteristics

Abstract:

Keywords:

基金项目(Foundation): 国家科技部“973”计划资助项目(2007CB714600);; 甘肃省科技攻关项目(2GS052-A52-004-03)

作者(Author): 李德顺,李仁年,杨从新,王秀勇,杨瑞,李银然,朱宇
LI De-shun 1,LI Ren-nian 1,YANG Cong-xin 1,WANG Xiu-yong,1 YANG Rui 1,LI Yin-ran 1,ZHU Yu 2 (1.Lanzhou University of Technology

参考文献(References)：

• [1]Somers D M.The S827and S828 Airfoils[M].NREL/SR-500-36292.2005.
• [2]李德顺,李仁年,等.一种风力机专用翼型气动特性的非定常数值模拟[J].西华大学学报,2008.
• [3]黄继雄.风力机专用新翼型及其气动特性研究[D].汕头大学硕士学位论文,2001.