气动双弹片对垂直轴风力机气动性能影响研究

俞洪静; 岳敏楠; 李春; 缪维跑; 王培麟; 黄浩达

doi:10.19912/j.0254-0096.tynxb.2023-1537

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太阳能学报 ›› 2025, Vol. 46 ›› Issue (1) : 25-33. DOI: 10.19912/j.0254-0096.tynxb.2023-1537

气动双弹片对垂直轴风力机气动性能影响研究

俞洪静, 岳敏楠, 李春, 缪维跑, 王培麟, 黄浩达

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STUDY ON INFLUENCE OF AERODYNAMIC DOUBLE FLAPS ON AERODYNAMIC PERFORMANCE OF VERTICAL AXIS WIND TURBINE

Yu Hongjing, Yue Minnan, Li Chun, Miao Weipao, Wang Peilin, Huang Haoda

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摘要

针对叶片流动分离导致垂直轴风力机气动性能下降,基于鸟类羽毛随阵风轻微抬起维持气流在其外翼再附着的特点,在叶片两侧加装气动弹片,通过计算流体动力学方法研究其对垂直轴风力机的作用机理以及对其气动性能的影响,并基于动态模态分解对比分析气动弹片作用下垂直轴风力机尾迹流场模态特征。结果表明：气动双弹片可抑制叶片表面流动分离,提升整机气动性能,有效增加流场稳定性;可大幅提升垂直轴风力机叶片瞬时转矩、切向力及翼型吸力面压力系数,且使低尖速比成为最佳尖速比,有效提高自启动性能及运行过程中的稳定性,从而提升垂直轴风力机气动性能,流场动态模态分解表明双弹片有助于抑制尾流涡强度。

Abstract

Aiming at the problem of aerodynamic performance degradation of vertical axis wind turbine caused by blade flow separation, based on the characteristics of bird feathers lifting slightly with gust to maintain the reattachment of airflow on its outer wing, aerodynamic flap is installed on both sides of the blade. The computational fluid dynamics method is used to study its mechanism of action on vertical axis wind turbine and its influence on aerodynamic performance and based on dynamic mode decomposition, the modal characteristics of wake flow field of vertical axis wind turbine under the action of pneumatic shrapnel are compared and analyzed. In terms of instantaneous torque, the aerodynamic double flaps significantly increase the tangential force of the vertical axis wind turbine blade and the pressure coefficient of the airfoil suction surface. At the same time, the low tip speed ratio becomes the best tip speed ratio become the best tip speed ratio, which improves the self-starting performance and stability in the operation process, thus improving the aerodynamic performance of the vertical axis wind turbine, the dynamic mode decomposition of the flow field shows that the double spring is helpful to suppress the wake vortex intensity.

导出引用

俞洪静, 岳敏楠, 李春, 缪维跑, 王培麟, 黄浩达. 气动双弹片对垂直轴风力机气动性能影响研究[J]. 太阳能学报. 2025, 46(1): 25-33 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1537

Yu Hongjing, Yue Minnan, Li Chun, Miao Weipao, Wang Peilin, Huang Haoda. STUDY ON INFLUENCE OF AERODYNAMIC DOUBLE FLAPS ON AERODYNAMIC PERFORMANCE OF VERTICAL AXIS WIND TURBINE[J]. Acta Energiae Solaris Sinica. 2025, 46(1): 25-33 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1537

中图分类号： TK83

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