Experimental investigation of the wake recovery characteristics of a wind turbine

被引：0
|
作者：
Han Y. [1 ]
Jin K. [1 ]
Yang B. [1 ]
Wang J. [1 ]
Bai Y. [1 ]
Wen C. [1 ]
机构：
[1] College of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot
来源：
International Journal of Ambient Energy | 2024年 / 45卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Horizontal axis wind turbine; turbulent inflow; variable-spacing bar grid; wake;
D O I：
10.1080/01430750.2024.2304717
中图分类号：
学科分类号：
摘要：
Wind tunnel experiments have been carried out to study the influence of wind shear and turbulence intensity on the wake recovery characteristics of wind turbines. In this regard, the turbulent inflow with turbulent intensity and wind shear was simulated using a variable-spacing bar grid. In the present study, wake data of the wind turbine was collected by particle image velocimetry. The obtained results demonstrate that the wind turbine ingests lower momentum under turbulent inflow, especially under the hub, which leads to the delay of wake recovery. In addition, the wake recovery and the effect on vortex structure under different inflow conditions are discussed. The tower also plays a due role in it. Then, the wake is analysed from two aspects of momentum exchange and energy transfer. The present study provides a reference for experimental data support for related numerical simulation studies. © 2024 Informa UK Limited, trading as Taylor & Francis Group.
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