NUMERICAL SIMULATION STUDY OF SPOILER WITH DIFFERENT HEIGHTS ON LARGE-THICKNESS AIRFOILS

Chen Delong; Ren Wang; Yao Na&#x02019;na; Li Chengliang

doi:10.19912/j.0254-0096.tynxb.2024-1278

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (11) : 713-719. DOI: 10.19912/j.0254-0096.tynxb.2024-1278

NUMERICAL SIMULATION STUDY OF SPOILER WITH DIFFERENT HEIGHTS ON LARGE-THICKNESS AIRFOILS

Chen Delong¹, Ren Wang¹, Yao Na’na¹, Li Chengliang^1,2

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Abstract

In order to improve the aerodynamic performance of large-thickness airfoils at the root of large blades and enhance the power generation of the blades, this study investigates the influence of T-shaped spoilers with different heights on the aerodynamic characteristics of two large-thickness airfoils using numerical simulation. The results show that within a certain range of angles of attack, the spoiler alters the pressure distribution on the airfoil surface and increases the lift coefficient, drag coefficient, and lift-to-drag ratio. As the height of the spoiler increases, the lift coefficient further increases. The increase in lift coefficient caused by the spoiler is significantly greater for the thicker airfoil compared to the thinner one. Installing a spoiler at the blade root simultaneously increases the annual energy production （AEP） and the structural load on the blade.

Key words

wind turbine blade / spoiler / aerodynamic characteristics / numerical simulation / flow control / large-thickness airfoils / blade power augmentation

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Chen Delong, Ren Wang, Yao Na’na, Li Chengliang. NUMERICAL SIMULATION STUDY OF SPOILER WITH DIFFERENT HEIGHTS ON LARGE-THICKNESS AIRFOILS[J]. Acta Energiae Solaris Sinica. 2025, 46(11): 713-719 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1278

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