IMPACT OF BLADE ICING ON AERODYNAMIC CHARACTERISTICS OF WIND TURBINES CONSIDERING WIND SHEAR AND TOWER SHADOW EFFECTS

Wang Chengyu; Wan Shuting; Wang Yilong; Deng Chao; Tian Siyu; Hu Xiaoli

doi:10.19912/j.0254-0096.tynxb.2024-1789

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (2) : 498-507. DOI: 10.19912/j.0254-0096.tynxb.2024-1789

IMPACT OF BLADE ICING ON AERODYNAMIC CHARACTERISTICS OF WIND TURBINES CONSIDERING WIND SHEAR AND TOWER SHADOW EFFECTS

Wang Chengyu¹, Wan Shuting¹, Wang Yilong¹, Deng Chao¹, Tian Siyu¹, Hu Xiaoli²

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Abstract

This paper focuses on the NREL 1.5 MW wind turbine and conducts one-way fluid-structure interaction calculations based on the ANSYS platform to explore the impact of blade icing conditions on the aerodynamic characteristics of the wind turbine, considering wind shear and tower shadow effects. Firstly, a geometric model of the wind turbine is established and verified. By comparing four operating conditions—constant wind speed, wind shear, constant wind speed with tower shadow effect, and wind shear with tower shadow effect—the influence of these conditions on the pressure distribution of the turbine blade airfoil is analyzed. Subsequently, the variations in aerodynamic characteristics such as torque, lift, and overturning moment of the iced blades and the wind wheel under these four conditions are further investigated. The research results indicate that wind shear and tower shadow effects significantly impact the aerodynamic performance of iced blades, particularly exhibiting noticeable abrupt changes in the pressure difference at the trailing edge airfoil. Additionally, wind shear and tower shadow effects cause 3P fluctuations in the torque, lift, and overturning moment of the iced blades, with each moment reaching extreme values when the blade rotates to an azimuth angle of 180°.

Key words

wind turbines / fluid-structure interaction / blade icing / wind shear / tower shadow effect / aerodynamic characteristics

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Wang Chengyu, Wan Shuting, Wang Yilong, Deng Chao, Tian Siyu, Hu Xiaoli. IMPACT OF BLADE ICING ON AERODYNAMIC CHARACTERISTICS OF WIND TURBINES CONSIDERING WIND SHEAR AND TOWER SHADOW EFFECTS[J]. Acta Energiae Solaris Sinica. 2026, 47(2): 498-507 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1789

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