| Multiscale analysis of a very long wind turbine wake in an atmospheric boundary layer | |
Zhang FS(张风顺); Yang XL(杨晓雷) ; He GW(何国威)
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| Corresponding Author | Yang, Xiaolei(xyang@imech.ac.cn) |
| Source Publication | PHYSICAL REVIEW FLUIDS
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| 2023-10-27 | |
| Volume | 8Issue:10Pages:27 |
| ISSN | 2469-990X |
| Abstract | 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. |
| DOI | 10.1103/PhysRevFluids.8.104605 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001098149100001 |
| WOS Keyword | LARGE-EDDY SIMULATION ; FLOW ; TURBULENCE ; STABILITY ; SIMILARITY ; TUNNEL ; FARM ; INSTABILITY ; VORTICES ; SPACE |
| WOS Research Area | Physics |
| WOS Subject | Physics, Fluids & Plasmas |
| Funding Project | 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 |
| Funding Organization | 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 |
| Classification | 二类 |
| Ranking | 1 |
| Contributor | Yang, Xiaolei |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/93368 |
| Collection | 非线性力学国家重点实验室 |
| Recommended Citation 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. |
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| File Name/Size | DocType | Version | Access | License | ||
| Jp2023A242.pdf（11191KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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