STUDY ON AERODYNAMIC PERFORMANCE OF DRAG BEAM OF VERTICAL AXIS WIND TURBINES

Jiang Yichen; Han Lincen; Tao Tao; Liu Shijie; Zong Zhi

doi:10.19912/j.0254-0096.tynxb.2024-1978

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (3) : 341-346. DOI: 10.19912/j.0254-0096.tynxb.2024-1978

STUDY ON AERODYNAMIC PERFORMANCE OF DRAG BEAM OF VERTICAL AXIS WIND TURBINES

Jiang Yichen¹, Han Lincen¹, Tao Tao², Liu Shijie¹, Zong Zhi¹

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Abstract

In order to improve the starting performance of lift-type vertical axis wind turbines, this study combines drag-type blades with the cross braces of the wind turbine and proposes a new type of drag-type cross brace, thus forming a lift-drag hybrid vertical axis wind turbine. Computational fluid dynamics（CFD） method is used to analyze the impact of the drag-type cross brace on the aerodynamic performance of the wind turbine at different rotational speeds. The results show that the drag-type cross brace can effectively increase the torque of the wind turbine at low rotational speeds and improve the starting performance of the wind turbine. At the rated rotational speed, it slightly reduces the torque of the wind turbine. At high rotational speeds, it significantly reduces the torque of the wind turbine and plays the role of an aerodynamic brake. With the increase in the length proportion of the drag-type blades on the cross brace, the improvement in the starting performance of the wind turbine at low rotational speeds is enhanced. At the rated rotational speed, the torque of the wind turbine further decrease, while there is no significant change in the aerodynamic performance of the lift-type blades.

Key words

vertical axis wind turbine / drag blade / drag-lift hybrid wind turbine / coefficient of power / starting performance

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Jiang Yichen, Han Lincen, Tao Tao, Liu Shijie, Zong Zhi. STUDY ON AERODYNAMIC PERFORMANCE OF DRAG BEAM OF VERTICAL AXIS WIND TURBINES[J]. Acta Energiae Solaris Sinica. 2026, 47(3): 341-346 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1978

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