Multiscale analysis of a very long wind turbine wake in an atmospheric boundary layer
文献类型：期刊论文
| 作者 | Zhang FS(张风顺); Yang XL(杨晓雷) ; He GW(何国威)
|
| 刊名 | PHYSICAL REVIEW FLUIDS
 |
| 出版日期 | 2023-10-27 |
| 卷号 | 8期号:10页码:27 |
| ISSN号 | 2469-990X |
| DOI | 10.1103/PhysRevFluids.8.104605 |
| 通讯作者 | Yang, Xiaolei(xyang@imech.ac.cn) |
| 英文摘要 | In this paper, we investigate the dynamics of a wind turbine wake for three different ground surface roughness lengths, i.e., k(0) = 0.001, 0.01, 0.1 m. The computational domain is very long [until 215D (D is the rotor diameter) wind turbine downwind], with the attempt to include the entire recovery process of a wind turbine wake. The streamwise variations of velocity deficit and turbulence intensity are analyzed. The focus of this paper is how flow structures of different scales vary as they pass through a wind turbine and travel to further downwind locations. Three different trends depending on scales are observed: (1) energy is added to motions of small scales (<1D) immediately in wind turbine's downwind, (2) energy for motions of scales in the range of 1D to 3.2D is first extracted by the wind turbine and then increased by the wake to a level higher than the inflow, and (3) energy for motions of scales greater than 3.4D is first extracted by the wind turbine, and then monotonically increase to the inflow level without a maximum. Finally, the energy density in scale space and its evolution in the streamwise direction are examined, showing the range of scales affected by a wind turbine and its wake. |
| 分类号 | 二类 |
| WOS关键词 | LARGE-EDDY SIMULATION ; FLOW ; TURBULENCE ; STABILITY ; SIMILARITY ; TUNNEL ; FARM ; INSTABILITY ; VORTICES ; SPACE |
| 资助项目 | NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics[11988102] ; National Natural Science Foundation of China[12172360] ; Institute of Mechanics, and Chinese Academy of Sciences |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001098149100001 |
| 资助机构 | NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics ; National Natural Science Foundation of China ; Institute of Mechanics, and Chinese Academy of Sciences |
| 其他责任者 | Yang, Xiaolei |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/93367]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Zhang FS,Yang XL,He GW. Multiscale analysis of a very long wind turbine wake in an atmospheric boundary layer[J]. PHYSICAL REVIEW FLUIDS,2023,8(10):27. |
| APA | 张风顺,杨晓雷,&何国威.(2023).Multiscale analysis of a very long wind turbine wake in an atmospheric boundary layer.PHYSICAL REVIEW FLUIDS,8(10),27. |
| MLA | 张风顺,et al."Multiscale analysis of a very long wind turbine wake in an atmospheric boundary layer".PHYSICAL REVIEW FLUIDS 8.10(2023):27. |
入库方式： OAI收割
来源：力学研究所
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