AERODYNAMIC CHARACTERISTICS OF WIND TURBINE AIRFOIL UNDER DYNAMIC EROSION WEAR

Li Deshun; Du Jiawei; Wang Qing; Xia Weiqing; Dong Hai; Ying Hangshuai

doi:10.19912/j.0254-0096.tynxb.2024-2217

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (4) : 360-366. DOI: 10.19912/j.0254-0096.tynxb.2024-2217

AERODYNAMIC CHARACTERISTICS OF WIND TURBINE AIRFOIL UNDER DYNAMIC EROSION WEAR

Li Deshun^1,2, Du Jiawei¹, Wang Qing^1,2, Xia Weiqing¹, Dong Hai¹, Ying Hangshuai¹

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Abstract

To address the issue of dynamic wear and the associated aerodynamic property changes of the airfoil, this study uses a jet sandblasting platform to simulate sand and dust erosion on the airfoil. Additionally, particle image velocimetry （PIV） and strain balance techniques are employed to compare changes in the flow field around the airfoil and its lift and drag coefficients before and after wear. The experimental results show that when the erosion wear rate of the airfoil exceeds 0.205%, the linear region of the lift coefficient decreases by approximately 0.2, while the stall angle increases compared to that of the unworn airfoil. At the same time, erosive wear results in a reduction of the drag coefficient by approximately 0.025. Notably, the erosive wear delays the onset of airflow separation, which improves the stall characteristics of the airfoil.

Key words

wind tunnels / wind turbines / airfoils / coated materials / erosion and wear / aerodynamic performance

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Li Deshun, Du Jiawei, Wang Qing, Xia Weiqing, Dong Hai, Ying Hangshuai. AERODYNAMIC CHARACTERISTICS OF WIND TURBINE AIRFOIL UNDER DYNAMIC EROSION WEAR[J]. Acta Energiae Solaris Sinica. 2026, 47(4): 360-366 https://doi.org/10.19912/j.0254-0096.tynxb.2024-2217

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