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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)
Source PublicationACTA MECHANICA SINICA
2019-12-01
Volume35Issue:6Pages:1178-1190
ISSN0567-7718
AbstractVertical-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.
KeywordAirfoil Dynamic load Roughness Vertical-axis wind turbines (VAWTs) Wind tunnel experiment
DOI10.1007/s10409-019-00898-3
Indexed BySCI ; EI ; CSCD
Language英语
WOS IDWOS:000499122300004
WOS KeywordAXIS WIND TURBINE ; DYNAMIC STALL ; AERODYNAMIC PERFORMANCE ; BLADE ROUGHNESS ; TRANSITION ; DESIGN
WOS Research AreaEngineering, Mechanical ; Mechanics
WOS SubjectEngineering ; Mechanics
Classification二类
Ranking5+
ContributorLi, DS (reprint author)
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/80785
Collection国家微重力实验室
Affiliation1.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
Recommended Citation
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.
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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