Aerodynamic Analysis of an Airfoil With Leading Edge Pitting Erosion

doi:10.1115/1.4037380

	Aerodynamic Analysis of an Airfoil With Leading Edge Pitting Erosion
	Wang, Yan 1,2; Hu, Ruifeng 3; Zheng, Xiaojing 1,3
刊名	JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME
	2017-12
卷号	139 期号:6
关键词	pitting erosion aerodynamic performance path-coefficient analysis S809 airfoil
ISSN号	0199-6231
DOI	10.1115/1.4037380
英文摘要	Leading edge erosion is a considerable threat to wind turbine performance and blade maintenance, and it is very imperative to accurately predict the influence of various degrees of erosion on wind turbine performance. In the present study, an attempt to investigate the effects of leading edge erosion on the aerodynamics of wind turbine airfoil is undertaken by using computational fluid dynamics (CFD) method. A new pitting erosion model is proposed and semicircle cavities were used to represent the erosion pits in the simulation. Two-dimensional incompressible Reynolds-averaged Navier-Stokes equation and shear stress transport (SST) k-omega turbulence model are adopted to compute the aerodynamics of a S809 airfoil with leading edge pitting erosions, where the influences of pits depth, densities, distribution area, and locations are considered. The results indicate that pitting erosion has remarkably undesirable influences on the aerodynamic performance of the airfoil, and the critical pits depth, density, and distribution area degrade the airfoil aerodynamic performance mostly were obtained. In addition, the dominant parameters are determined by the correlation coefficient path analysis method, results showed that all parameters have non-negligible effects on the aerodynamics of S809 airfoil, and the Reynolds number is of the most important, followed by pits density, pits depth, and pits distribution area. Meanwhile, the direct and indirect effects of these factors are analyzed, and it is found that the indirect effects are very small and the parameters can be considered to be independent with each other.
资助项目	Natural Science Foundation of Gansu Province[1308RJYA066]
WOS研究方向	Energy & Fuels ; Engineering
语种	英语
出版者	ASME
WOS记录号	WOS:000414151600002
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/33006]
专题	能源与动力工程学院
通讯作者	Zheng, Xiaojing
作者单位	1.Lanzhou Univ, Minist Educ, Key Lab Mech Environm & Disaster Western China, Lanzhou 730000, Gansu, Peoples R China 2.Lanzhou Univ Technol, Sch Energy & Power Engn, Lanzhou 730050, Gansu, Peoples R China 3.Xidian Univ, Sch Mechanoelect Engn, Res Ctr Appl Mech, Xian 710126, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yan,Hu, Ruifeng,Zheng, Xiaojing. Aerodynamic Analysis of an Airfoil With Leading Edge Pitting Erosion[J]. JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME,2017,139(6).
APA	Wang, Yan,Hu, Ruifeng,&Zheng, Xiaojing.(2017).Aerodynamic Analysis of an Airfoil With Leading Edge Pitting Erosion.JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME,139(6).
MLA	Wang, Yan,et al."Aerodynamic Analysis of an Airfoil With Leading Edge Pitting Erosion".JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME 139.6(2017).