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ISSN 0254-0096 CN 11-2082/K

太阳能学报 ›› 2022, Vol. 43 ›› Issue (7): 257-263.DOI: 10.19912/j.0254-0096.tynxb.2021-1002

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挟沙风对风力发电机叶片冲蚀磨损的数值研究

甄琦, 陈松利, 万大千, 闫彩霞, 孙凯, 李丹岚   

  1. 内蒙古农业大学能源与交通工程学院,呼和浩特 010018
  • 收稿日期:2021-08-24 出版日期:2022-07-28 发布日期:2023-01-28
  • 通讯作者: 陈松利(1968—),男,学士、教授,主要从事载运工具及新能源装备方面的研究。chens14239@126.com
  • 基金资助:
    国家自然科学基金(51766017); 内蒙古自然科学基金(2019MS05035)

NUMERICAL RESEARCH ON EROSION AND WEAR OF WIND TURBINE BLADES IN SAND-CARRYING WIND

Zhen Qi, Chen Songli, Wan Daqian, Yan Caixia, Sun Kai, Li Danlan   

  1. College of Energy and Transportation Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
  • Received:2021-08-24 Online:2022-07-28 Published:2023-01-28

摘要: 风力发电机叶片的风沙冲蚀问题是风电机组耐候性研究的重点之一,该文通过数值模拟的方法,基于1.5 MW的叶片,建立相似模型,研究不同沙尘粒径、不同来流风速和不同叶尖攻角等冲蚀条件对叶片的磨损特性及规律。研究表明:叶片受到的磨蚀率随风速增大而增加,在9 m/s风速时冲蚀分布集中于叶根、叶尖附近,随着风速增大冲蚀由叶根向叶片的中后段移动,且冲蚀效果更显著;随着沙粒粒径增大,叶片磨蚀率逐渐增大,且集中在叶根和叶片中前段;风沙冲蚀角度影响叶片表面的冲蚀分布,角度越大,冲蚀分布的面积越大。

关键词: 风力机, 叶片, 磨蚀, 计算流体力学, DPM模型

Abstract: One of the key points of wind turbine weather resistance research is the wind-sand erosion and wear of wind turbine blades. In this paper, the erosion and wear characteristics and rules of wind turbine blades are studied under different erosion conditions such as different sand diameters, different incoming wind speeds and different blade tip attack angles by numerical simulation method to established similarity model, based on 1.5 MW wind turbine blades. The results show that the erosion rate of the blade increases with the increase of wind speed. When the wind speed is 9 m/s, the erosion distribution is concentrated near the blade root and blade tip, and with the increase of wind speed, the erosion moves from the blade root to the middle and rear segment of the blade, and the erosion effect is more significant. with the increase of sand diameter The blade abrasion rate gradually increased. And the location of erosion and wear is concentrated in the blade root and the middle and front section of the blade. The erosion angle of sand-carrying wind affects the erosion distribution on the blade surface. The larger the erosion angle, the larger the area of erosion distribution.

Key words: wind turbines, blades, erosion, CFD, discrete phase model(DPM)

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