Critical stokes number for gas-solid flow erosion of wind turbine airfoil

	Critical stokes number for gas-solid flow erosion of wind turbine airfoil
	Li, Deshun1,2,3 ; Gong, Yuxiang 1; Li, Rennian1,2,3 ; Li, Yinran1,2,3 ; Ma, Ruijie 1
	2016-02-01
发表期刊	Transactions of Nanjing University of Aeronautics and Astronautics
ISSN	10051120
卷号	33 期号:1 页码:67-72
摘要	Wind turbine blades are inevitable to be eroded in wind-sand environment, so it is crucial to identify the flow conditions under which the erosion happens. Here, the effect of the sand diameter on wind turbine airfoil is first investigated. When the sand diameter is less than 3 μm, the sands will bypass the airfoil and no erosion occurs.When the sand diameter is larger than 4 μm, the sand grains collide with the airfoil and the erosion happens. Thus, there must be a critical sand diameter between 3 μm and 4 μm, at which the erosion is initiated on the airfoil surface. To find out this critical value, a particle Stokes number is introduced here. According to the range of the critical sand diameter mentioned above, the critical value of particle Stokes number is reasonably assumed to be between 0.0078 and 0.014. The assumption is subsequently validated by other four factors influecing the erosion, i.e., the angle of attack, relative thickness of the airfoil, different series airfoil, and inflow velocity. Therefore, the critical range of Stokes number has been confirmed. © 2016, Nanjing University of Aeronautics an Astronautics. All right reserved.
关键词	Airfoils Angle of attack Erosion Sand Turbomachine blades Two phase flow Wind turbines Airfoil surfaces Gas solid two phase flow Gas-solid flows Particle Stokes number Relative thickness Stokes number Wind turbine airfoils Wind turbine blades
收录类别	EI
语种	英语
出版者	Nanjing University of Aeronautics an Astronautics
EI入藏号	20161602257770
EI主题词	Turbine components
EI分类号	483.1 Soils and Soil Mechanics - 615.8 Wind Power (Before 1993, use code 611 ) - 617 Turbines and Steam Turbines - 631.1 Fluid Flow, General - 651.1 Aerodynamics, General - 652.1 Aircraft, General
来源库	Compendex
分类代码	483.1 Soils and Soil Mechanics - 615.8 Wind Power (Before 1993, use code 611 ) - 617 Turbines and Steam Turbines - 631.1 Fluid Flow, General - 651.1 Aerodynamics, General - 652.1 Aircraft, General
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/113407
专题	能源与动力工程学院新能源学院
作者单位	1.School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Gansu Provincial Technology Centre for Wind Turbines, Lanzhou; 730050, China; 3.Key Laboratory of Fluid Machinery and Systems, Lanzhou; 730050, China
第一作者单位	新能源学院
第一作者的第一单位	新能源学院
推荐引用方式 GB/T 7714	Li, Deshun,Gong, Yuxiang,Li, Rennian,et al. Critical stokes number for gas-solid flow erosion of wind turbine airfoil[J]. Transactions of Nanjing University of Aeronautics and Astronautics,2016,33(1):67-72.
APA	Li, Deshun,Gong, Yuxiang,Li, Rennian,Li, Yinran,&Ma, Ruijie.(2016).Critical stokes number for gas-solid flow erosion of wind turbine airfoil.Transactions of Nanjing University of Aeronautics and Astronautics,33(1),67-72.
MLA	Li, Deshun,et al."Critical stokes number for gas-solid flow erosion of wind turbine airfoil".Transactions of Nanjing University of Aeronautics and Astronautics 33.1(2016):67-72.