EN俯仰波浪前缘叶片动态失速主动控制研究
俯仰波浪前缘叶片动态失速主动控制研究
- 太阳能学报 2026年47卷第1期 页码：674-682
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DOI：doi:10.19912/j.0254-0096.tynxb.2024-1658
中图分类号： TK83-
网络首发：2026-02-05，
纸质出版：2026-02-05
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邹琳, 苗亚博, 柳迪伟, 等. 俯仰波浪前缘叶片动态失速主动控制研究[J]. 太阳能学报, 2026,47(1):674-682.
邹琳, 苗亚博, 柳迪伟, et al. 俯仰波浪前缘叶片动态失速主动控制研究[J]. 2026, 47(1): 674-682.
邹琳, 苗亚博, 柳迪伟, 等. 俯仰波浪前缘叶片动态失速主动控制研究[J]. 太阳能学报, 2026,47(1):674-682. DOI： doi:10.19912/j.0254-0096.tynxb.2024-1658.
邹琳, 苗亚博, 柳迪伟, et al. 俯仰波浪前缘叶片动态失速主动控制研究[J]. 2026, 47(1): 674-682. DOI： doi:10.19912/j.0254-0096.tynxb.2024-1658.
摘要
基于滑移网格技术和SST k-ω湍流模型建立等离子体激励下叶片动态失速数值计算模型
研究不同等离子激励参数下俯仰（-5°~25°）NACA0012直叶片及其改型的波浪前缘叶片的升阻力、流动结构及动态失速特性
探索波浪前缘耦合等离子体激励对叶片动态失速的主动控制机理。研究发现：波浪前缘叶片能有效降低叶片俯仰时的升阻力峰值并减小倾覆力矩。耦合等离子体激励后
波浪前缘叶片分离涡加速分离
俯仰转换阶段受力落差减小
升力迟滞回环曲线面积减小约23.9%。且下俯段产生的分离涡尺度明显减小
叶片受力波动更小
波浪前缘叶片耦合失速控制效果明显优于直叶片。随着等离子体激励电压幅值的增加
下俯转换时耦合控制作用变强
叶片迟滞效应进一步减小
震荡特性减弱
可有效改善波浪前缘叶片动态失速性能。
Abstract
A numerical model for dynamic stall of the pitching wavy leading-edge blade under plasma excitation was established by employing the sliding mesh technique and SST - turbulence model. The lift and drag
flow structures
and dynamic stall characteristics of pitching （-5°—25°） NACA0012 straight blade and its modified wavy leading-edge blades under different plasma excitation parameters were studied
and the active control mechanism of dynamic stall of the blade with wavy leading-edge blade coupled with plasma excitation was explored. The results show that the wavy leading-edge blade can effectively reduce the peak lift and drag forces and decrease the overturning moment during pitching. After coupling with plasma excitation
the separation vortex of the wavy leading-edge blade separates earlier
and the force drop is reduced during the pitching transition
the area of the lift hysteresis loop is reduced by 23.9%. And the separation vortex generated in the subsequent down-pitching stage is significantly reduced
resulting in smaller force fluctuations
indicating that its controlled performance is superior to that of straight blade. As the plasma excitation voltage amplitude increases
the coupled control effect becomes stronger during the down-pitching transition
further reducing the hysteresis effect of the blade and weakening the oscillation characteristics
effectively improving the dynamic stall performance of the wavy leading-edge blade.
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references
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