| Turbulence in waked wind turbine wakes: Similarity and empirical formulae | |
Zhang Y(张奕); Li ZB(李曌斌); Liu XH(刘晓豪); Sotiropoulos, Fotis; Yang XL(杨晓雷)
| |
| Source Publication | RENEWABLE ENERGY
 |
| 2023-07 | |
| Volume | 209Pages:27-41 |
| ISSN | 0960-1481 |
| Abstract | Turbulence of wind turbine wakes increases the power fluctuations and dynamic loads of downwind turbines. In this work, we analyze the large-eddy simulation (LES) data of the Horns Rev wind farm, and find that the streamwise variations of the Reynolds normal stresses in the wakes of the waked wind turbines located in different rows collapse well with each other for both rise and decay portions when they are normalized using the maxima. Empirical formulae in the form of a power function are then proposed to describe the streamwise variations of the Reynolds normal stresses for different blade spanwise positions. Notably, linear relations are observed between the exponent and the coefficient. The LES data of the two tandem wind turbine cases with different inflows and turbine spacings are then employed to test the proposed empirical formulae. The tests show that the empirical formulae can capture the downstream variations of the Reynolds normal stresses especially for the streamwise component. |
| Keyword | Wind turbine wake Similarity Empirical formulae Reynolds normal stress |
| DOI | 10.1016/j.renene.2023.03.068 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000973652600001 |
| Funding Organization | NSFC Basic Science Center Program [11988102] ; National Natural Science Foundation of China [12172360] ; Chinese Academy of Sciences, China ; Institute of Mechanics CAS |
| Classification | 二类/Q1 |
| Ranking | 1 |
| Contributor | Yang, XL |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/92249 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.(Zhang Yi, Li Zhaobin, Liu Xiaohao, Yang Xiaolei) Chinese Acad Sci Inst Mech State Key Lab Nonlinear Mech Beijing 100190 Peoples R China 2.(Zhang Yi, Li Zhaobin, Liu Xiaohao, Yang Xiaolei) Univ Chinese Acad Sci Sch Engn Sci Beijing 100049 Peoples R China 3.(Sotiropoulos Fotis) Virginia Commonwealth Univ Dept Mech & Nucl Engn Richmond VA 23284 USA 4.(Zhang Yi) Lanzhou Univ Coll Civil Engn & Mech Lanzhou 730000 Peoples R China |
| Recommended Citation GB/T 7714 | Zhang Y,Li ZB,Liu XH,et al. Turbulence in waked wind turbine wakes: Similarity and empirical formulae[J]. RENEWABLE ENERGY,2023,209:27-41.Rp_Au:Yang, XL |
| APA | 张奕,李曌斌,刘晓豪,Sotiropoulos, Fotis,&杨晓雷.(2023).Turbulence in waked wind turbine wakes: Similarity and empirical formulae.RENEWABLE ENERGY,209,27-41. |
| MLA | 张奕,et al."Turbulence in waked wind turbine wakes: Similarity and empirical formulae".RENEWABLE ENERGY 209(2023):27-41. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| Jp2023Fa255.pdf（1590KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment