EXPERIMENT ANALYSIS OF FRONT AND REAR WIND TURBINE WAKE INTERFERENCE AND VERIFICATION OF MIXED WAKE MODEL

被引：0

作者：

Ma G. ^{[1
]}

Chang J. ^{[1
]}

Li D. ^{[1
]}

Huo C. ^{[1
]}

Liu N. ^{[1
]}

Li R. ^{[1
]}

机构：

[1] College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou

来源：

Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2023年 / 44卷 / 06期

关键词：

engineering wake model; wake combination method; wind tunnels; wind turbines;

D O I：

10.19912/j.0254-0096.tynxb.2022-0118

中图分类号：

学科分类号：

摘要：

To study the mutual influence of the wake flow of two horizontal axis wind turbines in different arrangements, wind tunnel measurement experiments on the wake flow velocity of two wind turbines in series and staggered working conditions were carried out. The experimental results show that the wake expansion rate of the mixed wake is the same for the same incoming flow；the mixed wake recovers faster than the single wind turbine when the axial spacing of the tandem wind turbine is less than 6 times the wind turbine diameter. In addition, we validated the superposition method (velocity deficit sum of squares method) for the existing wake models. The results show that the superimposed wake flow based on the Park-polynomial and Park-Gauss models agrees well with the measured values at a cross section of 3.5 times of wind turbine diameters from the downstream wind turbine. The subsequent cross sections overestimate the velocity deficit of the wake. This study provides wind tunnel measurements for the development of a more accurate wake model and has engineering implications for the optimization of wind turbine displacements within wind farms. © 2023 Science Press. All rights reserved.

引用

页码：390 / 397

页数：7

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