Influence of Surface Ice Roughness on the Aerodynamic Performance of Wind Turbines

Xin Guan^1,2,*, Mingyang Li¹, Shiwei Wu¹, Yuqi Xie¹, Yongpeng Sun¹
1 School of New Energy, Shenyang Engineering College, Shenyang, 110136, China
2 Shenyang Key Laboratory Clean Energy Fine Comprehensive Utilization and Scheduling Energy Storage, Shenyang, 110136, China
* Corresponding Author: Xin Guan. Email: email , email
(This article belongs to the Special Issue: Advanced Problems in Fluid Mechanics)

Fluid Dynamics & Materials Processing https://doi.org/10.32604/fdmp.2024.049499

Received 09 January 2024; Accepted 16 May 2024; Published online 04 July 2024

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Abstract

The focus of this research was on the equivalent particle roughness height correction required to account for the presence of ice when determining the performances of wind turbines. In particular, two icing processes (frost ice and clear ice) were examined by combining the FENSAP-ICE and FLUENT analysis tools. The ice type on the blade surfaces was predicted by using a multi-time step method. Accordingly, the influence of variations in icing shape and ice surface roughness on the aerodynamic performance of blades during frost ice formation or clear ice formation was investigated. The results indicate that differences in blade surface roughness and heat flux lead to disparities in both ice formation rate and shape between frost ice and clear ice. Clear ice has a greater impact on aerodynamics compared to frost ice, while frost ice is significantly influenced by the roughness of its icy surface.

Keywords

Wind turbine; icing blade; surface roughness; aerodynamic characteristics; airfoil

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Influence of Surface Ice Roughness on the Aerodynamic Performance of Wind Turbines

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