Experimental and numerical investigation of the influence of roughness and turbulence on LUT airfoil performance

doi:10.1007/s10409-019-00898-3

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	Experimental and numerical investigation of the influence of roughness and turbulence on LUT airfoil performance
	Li ST Li Y ; Yang CX; Zheng XB ; Wang Q ; Wang Y ; Li DS ; Hu WR(胡文瑞)
发表期刊	ACTA MECHANICA SINICA
	2019-12-01
卷号	35 期号:6 页码:1178-1190
ISSN	0567-7718
摘要	Vertical-axis wind turbines (VAWTs) have been widely used in urban environments, which contain dust and experience strong turbulence. However, airfoils for VAWTs in urban environments have received considerably less research attention than those for horizontal-axis wind turbines (HAWTs). In this study, the sensitivity of a new VAWT airfoil developed at the Lanzhou University of Technology (LUT) to roughness was investigated via a wind tunnel experiment. The results show that the LUT airfoil is less sensitive to roughness at a roughness height of < 0.35 mm. Moreover, the drag bucket of the LUT airfoil decreases with increasing roughness height. Furthermore, the loads on the LUT airfoil during dynamic stall were studied at different turbulence intensities using a numerical method at a tip-speed ratio of 2. Before the stall, the turbulence intensity did not considerably affect the normal or tangential force coefficients of the LUT airfoil. However, after the stall, the normal force coefficient varied obviously at low turbulence intensity. Moreover, as the turbulence intensity increased, the normal and tangential force coefficients decreased rapidly, particularly in the downwind region of the VAWT.
关键词	Airfoil Dynamic load Roughness Vertical-axis wind turbines (VAWTs) Wind tunnel experiment
DOI	10.1007/s10409-019-00898-3
收录类别	SCI ; EI ; CSCD
语种	英语
WOS记录号	WOS:000499122300004
关键词[WOS]	AXIS WIND TURBINE ; DYNAMIC STALL ; AERODYNAMIC PERFORMANCE ; BLADE ROUGHNESS ; TRANSITION ; DESIGN
WOS研究方向	Engineering, Mechanical ; Mechanics
WOS类目	Engineering ; Mechanics
论文分区	二类
力学所作者排名	5+
RpAuthor	Li, DS (reprint author)
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/80785
专题	微重力重点实验室
作者单位	1.Lanzhou Univ Technol, Sch Energy & Power Engn, Lanzhou 730050, Gansu, Peoples R China 2.Gansu Prov Technol Ctr Wind Turbines, Lanzhou 730050, Gansu, Peoples R China 3.Key Lab Fluid Machinery & Syst, Lanzhou 730050, Gansu, Peoples R China 4.Shanghai Jiao Tong Univ, Sch Naval Architecture Ocean & Civil Engn, Lab Multiple Funct Towing Tank, Shanghai 200240, Peoples R China 5.Shanghai Jiao Tong Univ, Sch Naval Architecture Ocean & Civil Engn, State Key Lab Ocean Engn, Shanghai 200240, Peoples R China 6.Shanghai Jiao Tong Univ, Collaborat Innovat Ctr Adv Ship & Deep Sea Explor, Shanghai 200240, Peoples R China 7.Shanghai Jiao Tong Univ, Minist Educ, Key Lab Hydrodynam, Shanghai 200240, Peoples R China 8.Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Li ST Li Y,Yang CX,Zheng XB,et al. Experimental and numerical investigation of the influence of roughness and turbulence on LUT airfoil performance[J]. ACTA MECHANICA SINICA,2019,35,6,:1178-1190.Rp_Au:Li, DS (reprint author)
APA	Li ST Li Y.,Yang CX.,Zheng XB.,Wang Q.,Wang Y.,...&胡文瑞.(2019).Experimental and numerical investigation of the influence of roughness and turbulence on LUT airfoil performance.ACTA MECHANICA SINICA,35(6),1178-1190.
MLA	Li ST Li Y,et al."Experimental and numerical investigation of the influence of roughness and turbulence on LUT airfoil performance".ACTA MECHANICA SINICA 35.6(2019):1178-1190.

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