Experimental and numerical investigation of the influence of roughness and turbulence on LUT airfoil performance
文献类型：期刊论文
| 作者 | Li ST Li Y; Yang CX ; Zheng XB; Wang Q; Wang Y; Li DS; Hu WR(胡文瑞)
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| 刊名 | ACTA MECHANICA SINICA
 |
| 出版日期 | 2019-12-01 |
| 卷号 | 35期号:6页码:1178-1190 |
| 关键词 | Airfoil Dynamic load Roughness Vertical-axis wind turbines (VAWTs) Wind tunnel experiment |
| ISSN号 | 0567-7718 |
| DOI | 10.1007/s10409-019-00898-3 |
| 英文摘要 | 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. |
| 分类号 | 二类 |
| WOS关键词 | AXIS WIND TURBINE ; DYNAMIC STALL ; AERODYNAMIC PERFORMANCE ; BLADE ROUGHNESS ; TRANSITION ; DESIGN |
| WOS研究方向 | Engineering, Mechanical ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000499122300004 |
| 其他责任者 | Li, DS (reprint author) |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/80785]  |
| 专题 | 力学研究所_国家微重力实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China 2.Shanghai Jiao Tong Univ, Minist Educ, Key Lab Hydrodynam, Shanghai 200240, Peoples R China 3.Shanghai Jiao Tong Univ, Collaborat Innovat Ctr Adv Ship & Deep Sea Explor, Shanghai 200240, Peoples R China 4.Shanghai Jiao Tong Univ, Sch Naval Architecture Ocean & Civil Engn, State Key Lab Ocean Engn, Shanghai 200240, Peoples R China 5.Shanghai Jiao Tong Univ, Sch Naval Architecture Ocean & Civil Engn, Lab Multiple Funct Towing Tank, Shanghai 200240, Peoples R China 6.Key Lab Fluid Machinery & Syst, Lanzhou 730050, Gansu, Peoples R China 7.Gansu Prov Technol Ctr Wind Turbines, Lanzhou 730050, Gansu, Peoples R China 8.Lanzhou Univ Technol, Sch Energy & Power Engn, Lanzhou 730050, Gansu, 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. |
| 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. |
入库方式： OAI收割
来源：力学研究所
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