SIMULATION STUDY ON ICE PREVENTION AND REMOVAL FOR BLADES OF SMALL-SCALE STRAIGHT-BLADED VERTICAL AXIS WIND TURBINES

Tian Xu; Han Qingpeng; Zhu Rui; Yuan Binxia; Yang Tongguang; Wang Bo

doi:10.19912/j.0254-0096.tynxb.2024-1713

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (2) : 453-461. DOI: 10.19912/j.0254-0096.tynxb.2024-1713

SIMULATION STUDY ON ICE PREVENTION AND REMOVAL FOR BLADES OF SMALL-SCALE STRAIGHT-BLADED VERTICAL AXIS WIND TURBINES

Tian Xu¹, Han Qingpeng¹, Zhu Rui¹, Yuan Binxia¹, Yang Tongguang^2,3, Wang Bo^2,3

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Abstract

The icing of wind turbine blades can result in decreased wind energy utilization coefficients and accelerated component fatigue. Based on this, this paper conducts a study on the aerodynamic characteristics of the NACA4415 airfoil using numerical simulation methods. Variation of lift and drag coefficient and the distribution of surrounding flow field after the wing profile icing under different incoming wind speeds are analyzed. As icing time increases, the lift coefficient gradually decreases and then stabilizes, while the drag coefficient increases with intermittent fluctuations. Furthermore, a simulation study on de-icing of the airfoil is conducted using the piezoelectric vibration method. Through harmonic response analysis, the influence of piezoelectric element thickness and spacing on de-icing effectiveness is evaluated, resulting in the optimal piezoelectric element thickness and spacing being determined as 0.5 mm and 3.0 mm, respectively. Thermal analysis is also performed to calculate the changes in temperature, elastic stress, and elastic strain. As icing time extends, the average temperature of the ice mass increases exponentially, leading to an approximately linear increase in the elastic stress and elastic strain of the ice coverage.

Key words

wind turbine blades / blade airfoil / aerodynamic characteristics / numerical simulation / piezoelectric vibration / de-icing

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Tian Xu, Han Qingpeng, Zhu Rui, Yuan Binxia, Yang Tongguang, Wang Bo. SIMULATION STUDY ON ICE PREVENTION AND REMOVAL FOR BLADES OF SMALL-SCALE STRAIGHT-BLADED VERTICAL AXIS WIND TURBINES[J]. Acta Energiae Solaris Sinica. 2026, 47(2): 453-461 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1713

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