Effects of the particle Stokes number on wind turbine airfoil erosion

doi:10.1007/s10483-018-2267-6

	Effects of the particle Stokes number on wind turbine airfoil erosion
	Li, Deshun 2,3,4; Zhao, Zhenxi 2,3; Li, Yinran 2,3,4; Wang, Qing 2,3,4; Li, Rennian 2,3,4; Li, Ye 1
刊名	APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION
	2018-05
卷号	39 期号:5 页码:639-652
关键词	wind turbine airfoil erosion Stokes number sand-wind environment
ISSN号	0253-4827
DOI	10.1007/s10483-018-2267-6
英文摘要	Under natural conditions, wind turbines are inevitably eroded by the action of sand-wind flow. To further investigate the effects of dust drift on the erosion of the wind turbine blades in sand-wind environments, the effects of the wind velocity, particle diameter, and particle density on the erosion of wind turbine airfoils are studied, and the effects of the particle Stokes number on the airfoil erosion are discussed. The results show that, when the angle of attack (AOA) is 6.1 degrees, there will be no erosion on the airfoil surface if the particle Stokes number is lower than 0.013 5, whereas erosion will occur if the particle Stokes number is higher than 0.015 1. Therefore, there exists a critical range for the particle Stokes number. When the particle Stokes number is higher than the maximum value in the critical range, airfoil erosion will occur. The result is further confirmed by changing the particle diameter, particle density, and inflow speed. It is shown that the erosion area on the airfoil and the maximum erosion rate are almost equal under the same particle Stokes number and AOA. The extent of airfoil erosion increases when the particle Stokes number increases, and the critical particle Stokes number increases when the AOA increases. Moreover, the geometric shape of the airfoil pressure surface greatly affects the airfoil erosion, especially at the curvature near the leading edge.
资助项目	National Natural Science Foundation of China[51766009] ; National Natural Science Foundation of China[51566011]
WOS研究方向	Mathematics ; Mechanics
语种	英语
出版者	SHANGHAI UNIV
WOS记录号	WOS:000431189300003
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/32678]
专题	能源与动力工程学院兰州理工大学
通讯作者	Li, Deshun
作者单位	1.Shanghai Jiao Tong Univ, Sch Naval Architecture Ocean & Civil, State Key Lab Ocean Engn, Shanghai 200240, Peoples R China 2.Lanzhou Univ Technol, Coll Energy & Power Engn, Lanzhou 730050, Gansu, Peoples R China 3.Gansu Prov Technol Ctr Wind Turbines, Lanzhou 730050, Gansu, Peoples R China 4.Gansu Prov Key Lab Fluid Machinery & Syst, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Li, Deshun,Zhao, Zhenxi,Li, Yinran,et al. Effects of the particle Stokes number on wind turbine airfoil erosion[J]. APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION,2018,39(5):639-652.
APA	Li, Deshun,Zhao, Zhenxi,Li, Yinran,Wang, Qing,Li, Rennian,&Li, Ye.(2018).Effects of the particle Stokes number on wind turbine airfoil erosion.APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION,39(5),639-652.
MLA	Li, Deshun,et al."Effects of the particle Stokes number on wind turbine airfoil erosion".APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION 39.5(2018):639-652.