Effect of Auxiliary Device on Aerodynamic Performance of Wind Turbine Airfoil

YU Hongjing; YUE Minnan; LI Chun; MIAO Weipao; OU Huahao; HUANG Haoda

doi:10.19805/j.cnki.jcspe.2025.240357

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Effect of Auxiliary Device on Aerodynamic Performance of Wind Turbine Airfoil

更新时间：2026-10-10

- Effect of Auxiliary Device on Aerodynamic Performance of Wind Turbine Airfoil
- Chinese Journal of Power Engineering Vol. 45, Issue 7, Pages: 1020-1027(2025)
- 作者机构：
  
  1. 上海理工大学能源与动力工程学院,上海,200093
  2. 上海非碳基能源转换与利用研究院,上海,200240
- 作者简介：
- 基金信息：
- DOI：10.19805/j.cnki.jcspe.2025.240357
  CLC：
- Online First：14 July 2025，
  
  Published：2025
- 稿件说明：
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俞洪静,岳敏楠,李春,缪维跑,欧华浩,黄浩达. 辅助装置对风力机翼型气动性能的影响动力工程学报, 2025, 45(7): 1020-1027 https://doi.

org/10.19805/j.cnki.jcspe.2025.240357
俞洪静,岳敏楠,李春,缪维跑,欧华浩,黄浩达. 辅助装置对风力机翼型气动性能的影响动力工程学报, 2025, 45(7): 1020-1027 https://doi. DOI： 10.19805/j.cnki.jcspe.2025.240357.

org/10.19805/j.cnki.jcspe.2025.240357 DOI：

摘要

为改善风力机翼型流动分离并提升气动性能

提出了一种加装在翼型吸力面附近的辅助装置。以NACA0021为主翼型

采用计算流体动力学方法

在攻角0°~24°范围内对比分析了原始翼型及带有辅助装置主翼翼型的气动性能。结果表明:采用非对称辅助小翼S809对主翼翼型增升减阻效果显著

在部分攻角下可有效抑制主翼吸力面大尺度分离涡产生

减小失速区域

使流动分离点后移

延缓流动分离;S809辅助小翼提高了主翼吸力面压力系数

使整体压差增大

显著提升了主翼气动性能。

Abstract

In order to improve the flow separation and aerodynamic performance of wind turbine airfoil

an auxiliary device installed on the suction surface of airfoil was proposed. Taking NACA0021 as the main airfoil

the computational fluid dynamics (CFD) method was used to compare and analyze the aerodynamic performance of the original airfoil and the main airfoil with auxiliary device in the range of attack angle of 0°-24°. Results show that the asymmetric auxiliary winglet S809 has a significant effect on increasing lift and reducing drag of the main airfoil. It can effectively suppress the generation of large-scale separation vortex on the suction surface of the main airfoil at some angles of attack

reduce the stall area

make the flow separation point move backward

and delay the flow separation. In addition

the S809 auxiliary winglet increases the pressure coefficient of the main airfoil suction surface and the overall pressure difference

and significantly improves the aerodynamic performance of the main airfoil.

关键词

Keywords

references

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