INFLUENCE OF LEADING EDGE AUXILIARY AIRFOIL ON WIND-SAND EROSION AND AERODYNAMIC PERFORMANCE OF WIND TURBINE BLADES

Li Deshun; Zhang Rui; Wang Qing; Li Zhengyu; Fu Ning

doi:10.19912/j.0254-0096.tynxb.2023-2137

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (4) : 541-549. DOI: 10.19912/j.0254-0096.tynxb.2023-2137

INFLUENCE OF LEADING EDGE AUXILIARY AIRFOIL ON WIND-SAND EROSION AND AERODYNAMIC PERFORMANCE OF WIND TURBINE BLADES

Li Deshun^1,2, Zhang Rui¹, Wang Qing^1,2, Li Zhengyu¹, Fu Ning¹

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Abstract

In order to investigate the effect of leading edge auxiliary airfoil on the wind-sand erosion resistance of wind turbine wing shapes, the numerical simulation of wind turbine airfoil in a sandy environment was carried out by using the RANS equation coupled with the discrete term DPM model. Research results show that installing a leading edge auxiliary airfoil in an appropriate position can enhance the aerodynamic performance of the airfoil while enhancing its resistance to wind-sand erosion and wear. The installation of leading edge auxiliary airfoil within the chord length of 25 mm and the relative distance of 125 mm from the main airfoil can obtain good erosion and abrasion resistance, but the stall angle of attack way be reduced in some of the installation positions. By comparing the wind-sand erosion performance of leading edge auxiliary airfoils under different main wing shapes, it is found that the wind-sand erosion effect of leading edge auxiliary airfoil is more suitable for asymmetric airfoils and can shift backward the erosion amount of airfoils with larger relative thicknesses.

Key words

airfoil / flow control / wind turbine / sand environment / erosion / numerical simulation

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Li Deshun, Zhang Rui, Wang Qing, Li Zhengyu, Fu Ning. INFLUENCE OF LEADING EDGE AUXILIARY AIRFOIL ON WIND-SAND EROSION AND AERODYNAMIC PERFORMANCE OF WIND TURBINE BLADES[J]. Acta Energiae Solaris Sinica. 2025, 46(4): 541-549 https://doi.org/10.19912/j.0254-0096.tynxb.2023-2137

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