Interactive Effects of Wind Tunnel Sidewalls on Flow Structures around 2D Airfoil Model
文献类型：期刊论文
| 作者 | Bai, Jingyan1,2,3,4; Zhang, Lei1,3; Yang, Ke3; Zhao, Daiqing2; Xu, Jianzhong1,3 |
| 刊名 | JOURNAL OF THERMAL SCIENCE
 |
| 出版日期 | 2023-01-16 |
| 页码 | 10 |
| 关键词 | airfoil experiment sidewall corner vortex stall cell airfoil-wall junction |
| ISSN号 | 1003-2169 |
| DOI | 10.1007/s11630-023-1753-7 |
| 通讯作者 | Zhang, Lei(zhanglei@iet.cn) |
| 英文摘要 | This paper presents the effect of wind tunnel sidewalls on the wind turbine airfoils with experimental and numerical methods. The test is carried out in a low-speed wind tunnel at Re=2.62x10(5). Pressures acting on the airfoil surface are measured by a multiport pressure device. And, the oil flow visualization technique is used to investigate the flow field characteristics of the airfoil surface. Then, a numerical simulation was conducted with the measurement results. As a result, it is clarified the flow structures on the airfoil surface depend strongly on the angles of attack and the sidewalls. At small angles of attack, the three-dimensional separation caused by the interaction between the sidewall boundary layer and the airfoil boundary layer is very small, and only appears near the junction of the airfoil model and the sidewall. This corner separation becomes large with the increase of the angle of attack. At the middle part of the testing model, the boundary layer flow evolves into three-dimensional separation, i.e., stall cell, when the separation develops to an appreciate extent. The stall phenomenon will further spread from the center line to sidewalls with the increase of the angle of attack; and then, its development will be limited by the sidewall boundary layer separation. Comparably, the simulation shows that the sidewall make the pressure coefficient C-p decrease, and proper boundary condition can maintain two-dimensional flow at large angles of attack by eliminating the influence of corner vortices. |
| WOS关键词 | BOUNDARY-LAYER ; LOCAL VARIABLES ; EDDY SIMULATION ; TURBINE |
| 资助项目 | National Natural Science Foundation of China[51776204] |
| WOS研究方向 | Thermodynamics ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000913634300001 |
| 出版者 | SPRINGER |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.giec.ac.cn/handle/344007/38355]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Zhang, Lei |
| 作者单位 | 1.Chinese Acad Sci, Key Lab CAS Wind Util, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510650, Peoples R China 3.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bai, Jingyan,Zhang, Lei,Yang, Ke,et al. Interactive Effects of Wind Tunnel Sidewalls on Flow Structures around 2D Airfoil Model[J]. JOURNAL OF THERMAL SCIENCE,2023:10. |
| APA | Bai, Jingyan,Zhang, Lei,Yang, Ke,Zhao, Daiqing,&Xu, Jianzhong.(2023).Interactive Effects of Wind Tunnel Sidewalls on Flow Structures around 2D Airfoil Model.JOURNAL OF THERMAL SCIENCE,10. |
| MLA | Bai, Jingyan,et al."Interactive Effects of Wind Tunnel Sidewalls on Flow Structures around 2D Airfoil Model".JOURNAL OF THERMAL SCIENCE (2023):10. |
入库方式： OAI收割
来源：广州能源研究所
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