Resolvent-based motion-to-wake modelling of wind turbine wakes under dynamic rotor motion
文献类型：期刊论文
| 作者 | Li, Zhaobin1,2 ; Yang, Xiaolei1,2
|
| 刊名 | JOURNAL OF FLUID MECHANICS
 |
| 出版日期 | 2024-02-08 |
| 卷号 | 980页码:47 |
| ISSN号 | 0022-1120 |
| 关键词 | wakes |
| DOI | 10.1017/jfm.2023.1097 |
| 通讯作者 | Yang, Xiaolei(xyang@imech.ac.cn) |
| 英文摘要 | We propose a linearized deterministic model for predicting coherent structures in the wake of a floating offshore wind turbine subject to platform motions. The model's motion-to-wake predictive capability is achieved through two building blocks: a motion-to-forcing (M2F) part and a forcing-to-wake (F2W) part. The M2F model provides a unified framework to parameterize the effects of arbitrary floating wind turbine motions as unsteady loads of a fixed actuator disk, requiring only the radial distribution of the aerodynamics force coefficient on the blade as input. The F2W model is derived based on a bi-global resolvent model obtained from the linearized Navier-Stokes equations, using the time-averaged wake of a fixed wind turbine as input. In addition to its capability of predicting sensitive frequency ranges, the model excels linear stability analysis by providing spatial modes of the wake response in a motion-specific and phase-resolved manner. The model successfully predicts the wake pulsing mode induced by surge, as well as the similarity and difference of the wake meandering modes caused by sway and yaw. Large-eddy simulations under different inflow turbulence intensities (TIs) and length scales are further conducted to analyse the wake meandering triggered by the simultaneous excitation of free-stream turbulence and sway motion. The results show distinct frequency signatures for the wake dynamics induced by ambient turbulence and sway motion. The inflow TI is found to have a stabilizing effect on the wake, reducing the motion-induced wake responses. Such a stabilizing effect is captured satisfactorily with the proposed model, provided that the effective viscosity is calibrated properly using the data from the fixed turbine wake under the corresponding turbulent inflow. |
| WOS关键词 | EDDY VISCOSITY ; ENERGY AMPLIFICATION ; FLOW ; TUNNEL ; EVOLUTION ; SURGE ; AERODYNAMICS ; TURBULENCE ; STABILITY |
| 资助项目 | Basic Science Center Program for 'Multiscale Problems in Nonlinear Mechanics' of the National Natural Science Foundation of China[11988102] ; NSFC[12172360] ; NSFC[12202453] |
| WOS研究方向 | Mechanics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001157315600001 |
| 资助机构 | Basic Science Center Program for 'Multiscale Problems in Nonlinear Mechanics' of the National Natural Science Foundation of China ; NSFC |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/94445]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 通讯作者 | Yang, Xiaolei |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Zhaobin,Yang, Xiaolei. Resolvent-based motion-to-wake modelling of wind turbine wakes under dynamic rotor motion[J]. JOURNAL OF FLUID MECHANICS,2024,980:47. |
| APA | Li, Zhaobin,&Yang, Xiaolei.(2024).Resolvent-based motion-to-wake modelling of wind turbine wakes under dynamic rotor motion.JOURNAL OF FLUID MECHANICS,980,47. |
| MLA | Li, Zhaobin,et al."Resolvent-based motion-to-wake modelling of wind turbine wakes under dynamic rotor motion".JOURNAL OF FLUID MECHANICS 980(2024):47. |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。