Multi-Dimensional Extraction of Ice Shape and an Investigation of Its Aerodynamic Characteristics on Iced Wind Turbine Blades

Author:

Cui Hongmei1,Li Yonghao1,Fan Teng1,Fu Yangxu1,Su Linchao1,Wang Xinkai1

Affiliation:

1. Department of Mechanical and Electrical Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China

Abstract

The icing of wind turbine blades can cause changes in airfoil shape, which in turn significantly reduces the aerodynamic performance and affects the power generation efficiency of a wind turbine. In this paper, the iced airfoil shape of wind turbine blades with different positions, masses, and angles of attack icing was measured and modeled using 3D scanning technology, and changes in airfoil shape parameters under different icing conditions were obtained. The numerical simulations of icing blades were carried out to investigate the effect of blade icing on aerodynamic characteristics. The results show that ice accumulation thickness tends to increase nonlinearly along the spanwise direction and chord length for both windward and leeward icing. The airfoil angle of attack affects the trend of ice accumulation changes. As shown by the numerical simulation of the aerodynamic characteristic, blade icing changes the airfoil shape, which changes the pressure difference between the leading edge and trailing edge, affects the size and number of the wake vortex structures, and further changes the aerodynamic characteristics of the blade.

Funder

National Natural Science Foundation of China

Interdisciplinary Research Fund of Inner Mongolia Agricultural University

Science and Technology Plan of Inner Mongolia Autonomous Region in China in 2020

Inner Mongolia Autonomous Region Graduate Research Innovation in 2023

Publisher

MDPI AG

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