NUMERICAL SIMULATION OF EFFECT OF AIRFOIL SLOT ON AERODYNAMIC CHARACTERISTICS OF STRAIGHT BLADEVERTICAL AXIS WIND TURBINE

Cheng Haozhe; Yang Shengbing; Li Hailin; Li Yan; Feng Fang

doi:10.19912/j.0254-0096.tynxb.2024-1495

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (1) : 450-458. DOI: 10.19912/j.0254-0096.tynxb.2024-1495

NUMERICAL SIMULATION OF EFFECT OF AIRFOIL SLOT ON AERODYNAMIC CHARACTERISTICS OF STRAIGHT BLADEVERTICAL AXIS WIND TURBINE

Cheng Haozhe¹, Yang Shengbing¹, Li Hailin¹, Li Yan¹, Feng Fang²

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Abstract

To improve the starting performance of vertical-axis（VAWTS） wind turbines and the efficiency of wind energy utilization at low and medium tip speed ratios（λ）, a slot control method based on the NACA0018 airfoil is proposed, and 18 types of slot airfoils are studied in detail by numerical simulation methods, and the results show that the slot plays a significant role in enhancing the aerodynamic performance of the airfoils within the λ range of 1 to 3. At λ of 2.5, the 0.10c_0.40c airfoil has the best enhancement effect, which is 60.4% higher than the original airfoil blade Cm. This study investigates the effects of slot parameters on the aerodynamic performance of the airfoil, and provides a reference for further research on the method of slot control.

Key words

VAWTs / tip speed ratio / numerical simulation / air slotted / flow control / aerodynamic performance

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Cheng Haozhe, Yang Shengbing, Li Hailin, Li Yan, Feng Fang. NUMERICAL SIMULATION OF EFFECT OF AIRFOIL SLOT ON AERODYNAMIC CHARACTERISTICS OF STRAIGHT BLADEVERTICAL AXIS WIND TURBINE[J]. Acta Energiae Solaris Sinica. 2026, 47(1): 450-458 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1495

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