Effects of surface roughness and Reynolds number on aerodynamic performance of wind turbine airfoil

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	Effects of surface roughness and Reynolds number on aerodynamic performance of wind turbine airfoil
	Li, Rennian; Chen, Yin
刊名	Nanjing Hangkong Hangtian Daxue Xuebao/Journal of Nanjing University of Aeronautics and Astronautics
	2011-10-01
卷号	43 期号:5 页码:693-696
关键词	Airfoils Drag Drag coefficient Lift Reynolds number Storms Surface roughness Turbulence models Wind turbines Aero-dynamic performance Attack angle Design proposal Dust storm Lift coefficient Small region Spalart-Allmaras turbulence model Wind turbine airfoils
ISSN号	10052615
英文摘要	The Spalart-Allmaras turbulence model is used to investigate the aerodynamic performance of a wind turbine airfoil DU00-W-212. Numerical simulation results show different performances both rough and smooth airfoil when Reynolds number changes in a small region. The effect of Reynolds number on aerodynamic performance of rough airfoil are studied. The curve of lift-drag coefficients reveals that the roughness is an important influencing factor upon the lift coefficient at attack angle of approximately 10°. Lift coefficient will descend and drag coefficient will ascend because of the rough leading edge at a small attack angle. However, the drag coefficient of a smooth airfoil is higher than that of the rough airfoil when the airfoil has gone into stall conditions. The region of the attack angle with the highest lift coefficient has to be avoided in the design proposal, thus improving the capability of the blade adapted to the harsh dust storm.
语种	中文
出版者	Nanjing University of Aeronautics an Astronautics
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/111252]
专题	兰州理工大学
作者单位	Gansu Province Wind Turbine Engineering Research Center, Lanzhou University of Technology, Lanzhou, 730050, China
推荐引用方式 GB/T 7714	Li, Rennian,Chen, Yin. Effects of surface roughness and Reynolds number on aerodynamic performance of wind turbine airfoil[J]. Nanjing Hangkong Hangtian Daxue Xuebao/Journal of Nanjing University of Aeronautics and Astronautics,2011,43(5):693-696.
APA	Li, Rennian,&Chen, Yin.(2011).Effects of surface roughness and Reynolds number on aerodynamic performance of wind turbine airfoil.Nanjing Hangkong Hangtian Daxue Xuebao/Journal of Nanjing University of Aeronautics and Astronautics,43(5),693-696.
MLA	Li, Rennian,et al."Effects of surface roughness and Reynolds number on aerodynamic performance of wind turbine airfoil".Nanjing Hangkong Hangtian Daxue Xuebao/Journal of Nanjing University of Aeronautics and Astronautics 43.5(2011):693-696.