Study on flow field characteristics and aerodynamic loads of horizontal axis wind turbine in shear inflow

	Study on flow field characteristics and aerodynamic loads of horizontal axis wind turbine in shear inflow
	Zhang, Xuyao 1; Yang, Congxin1,2 ; Li, Shoutu1,2 ; Gao, Zhiteng 1; Luo, Song 1
	2019-11-28
发表期刊	Taiyangneng Xuebao/Acta Energiae Solaris Sinica
ISSN	02540096
卷号	40 期号:11 页码:3281-3288
摘要	A rotor of 33 kW two-blade horizontal axis wind turbine is simulated under the shear inflow conditions. The flow field characteristics and the aerodynamic loads of the horizontal axis wind turbine are studied by CFD method. The results show that the fluctuation curves of velocity with azimuth angle at the upstream of rotor deviate from the curves obtained from the theoretical calculation in shear inflow, and the axial velocity of wake region presenting asymmetry distribution. The moving speed of the tip vortex and root vortex above the hub is faster than that of below the hub. Meanwhile, the aerodynamic loads of wind turbine blade and rotor vary with azimuth angle in a sine or cosine way and the frequency corresponding to the peak of the power spectrum of the rotor load are related to the integral multiples of the blade passing frequency. When the wind shear exponent increases from 0.1 to 0.5, the average torque and axial force of rotor decrease 2.28% and 1.43% respectively, but the fluctuation amplitude increases gradually. Moreover, a phase shifting of the torque and axial force as functions of azimuth angle is found, and the larger the wind shear exponent, the more obvious of the phase shifting. The root mean square of yaw moment and tilt moment of rotor is increased by 4.07 times and 4.04 times respectively, and the fluctuation amplitude of rotor yaw moment and tilt moment increases gradually with the increase of wind shear exponent. © 2019, Editorial Board of Acta Energiae Solaris Sinica. All right reserved.
关键词	Aerodynamic loads Axial flow Computational fluid dynamics Flow fields Shear flow Turbomachine blades Vortex flow Wind turbines Blade passing frequency Flow field characteristics Fluctuation amplitudes Horizontal axis wind turbines Integral multiples Theoretical calculations Wind shears Wind turbine blades
收录类别	EI
语种	中文
出版者	Science Press
EI入藏号	20195107891037
EI主题词	Aerodynamics
EI分类号	615.8 Wind Power (Before 1993, use code 611 ) - 631.1 Fluid Flow, General - 651.1 Aerodynamics, General - 723.5 Computer Applications
来源库	Compendex
分类代码	615.8 Wind Power (Before 1993, use code 611 ) - 631.1 Fluid Flow, General - 651.1 Aerodynamics, General - 723.5 Computer Applications
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/114300
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.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	Zhang, Xuyao,Yang, Congxin,Li, Shoutu,et al. Study on flow field characteristics and aerodynamic loads of horizontal axis wind turbine in shear inflow[J]. Taiyangneng Xuebao/Acta Energiae Solaris Sinica,2019,40(11):3281-3288.
APA	Zhang, Xuyao,Yang, Congxin,Li, Shoutu,Gao, Zhiteng,&Luo, Song.(2019).Study on flow field characteristics and aerodynamic loads of horizontal axis wind turbine in shear inflow.Taiyangneng Xuebao/Acta Energiae Solaris Sinica,40(11),3281-3288.
MLA	Zhang, Xuyao,et al."Study on flow field characteristics and aerodynamic loads of horizontal axis wind turbine in shear inflow".Taiyangneng Xuebao/Acta Energiae Solaris Sinica 40.11(2019):3281-3288.