振荡参数对涡流发生器抑制风力机翼型动态失速影响研究

doi:10.3901/JME.2023.02.251

机械工程学报 ›› 2023, Vol. 59 ›› Issue (2): 251-258.doi: 10.3901/JME.2023.02.251

• 可再生能源与工程热物理 • 上一篇下一篇

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振荡参数对涡流发生器抑制风力机翼型动态失速影响研究

冯俊鑫¹, 赵振宙^1,2, 江瑞芳¹, 孟令玉¹, 陈明¹, 许波峰¹

1. 河海大学能源与电气学院南京 211100;
2. 南通河海大学海洋与近海工程研究院南通 226000

收稿日期:2021-12-06 修回日期:2022-05-10 发布日期:2023-03-30
通讯作者: 赵振宙(通信作者),男,1982年出生,博士,教授,博士研究生导师。主要研究方向为风力机空气动力学,涡流发生器优化设计、流动控制。E-mail:joephy@163.com
作者简介:冯俊鑫,女,1998年出生。主要研究方向为风力机气动特性。E-mail:1711428681@qq.com
基金资助:
国家自然科学基金（51876054，11502070）和南通市民生科技（MS22019018）资助项目。

Research on Effect of Vortex Generator on Dynamic Stall of Wind Turbine Blade at Different Oscillation Parameters

FENG Junxin¹, ZHAO Zhenzhou^1,2, JIANG Ruifang¹, MENG Lingyu¹, CHEN Ming¹, XU Bofeng¹

1. College of Energy and Electrical Engineering, Hohai University, Nanjing 211100;
2. Institute of Ocean and Offshore Engineering, Hohai University, Nantong 226000

Received:2021-12-06 Revised:2022-05-10 Published:2023-03-30

摘要/Abstract

摘要： 动态失速对风力机叶片气动特性具有重要影响，涡流发生器（Vortex generators，VGs）是目前风力机领域应用最为广泛的流动控制技术，对动态分离具有一定的抑制作用。为探索VGs对风力机翼型动态失速的抑制作用，采用SST k-ω湍流模型，研究振幅Δα、折合频率k对加VGs的DU91-W2-250翼段动态失速特性的影响。结果表明：振幅增大，动态失速迟滞效应增强，失速角延后，最大升力系数增加，下俯阶段的升力系数减小，平均升力系数降低。折合频率较大时，阻力系数迟滞效应增强，上仰阶段阻力增大，下俯阶段阻力减小，平均升阻力系数随折合频率增大先增大后减小；折合频率越大的工况，流场动态响应明显，加VGs翼段失速严重。与光滑翼段相比较，VGs延迟动态失速效果与振幅成正比，与折合频率成负相关。

关键词: 涡流发生器, DU91-W2-250, 动态失速, 振幅, 折合频率

Abstract: Dynamic stall has a great influence on the aerodynamic characteristics of wind turbine blades. Vortex generators (VGs) are the most widely used flow control technology in the field of wind turbine, which has a certain inhibitory effect on dynamic separation. In order to explore the inhibitory effect of wind turbine blades with VGs on dynamic stall, SST k-ω turbulence model is used to analyze the performance of the airfoil segment with VGs on the oscillating motion at different amplitude Δα and reduced frequency k. The results show that with the increase of amplitude, the hysteresis effect of dynamic stall increases, the stall angle is delayed, the maximum lift coefficient increases, the lift coefficient decreases in the pitching-up stage and the average lift coefficient decreases. With the increase of the reduced frequency, the hysteresis effect of the resistance coefficient increases, and the drag coefficient increases in the pitching-up stage and decreases in the pitching-down stage. The average lift and drag coefficients first increase and then decrease with the increase of the reduced frequency. Under the condition of high reduced frequency, the dynamic response of flow field is obvious, and the stall of airfoil segment with VGs is serious. Compared with the smooth airfoil segment, the delayed dynamic stall effect is directly proportional to the amplitude and negatively related to the reduced frequency.

Key words: vortex generator, DU91-W2-250, dynamic stall, oscillation parameters, amplitude, reduced frequency

中图分类号:

TG156

冯俊鑫, 赵振宙, 江瑞芳, 孟令玉, 陈明, 许波峰. 振荡参数对涡流发生器抑制风力机翼型动态失速影响研究[J]. 机械工程学报, 2023, 59(2): 251-258.

FENG Junxin, ZHAO Zhenzhou, JIANG Ruifang, MENG Lingyu, CHEN Ming, XU Bofeng. Research on Effect of Vortex Generator on Dynamic Stall of Wind Turbine Blade at Different Oscillation Parameters[J]. Journal of Mechanical Engineering, 2023, 59(2): 251-258.

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振荡参数对涡流发生器抑制风力机翼型动态失速影响研究

Research on Effect of Vortex Generator on Dynamic Stall of Wind Turbine Blade at Different Oscillation Parameters

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