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

doi:10.19912/j.0254-0096.tynxb.2021-1002

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (7) : 257-263. DOI: 10.19912/j.0254-0096.tynxb.2021-1002

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

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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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Zhen Qi, Chen Songli, Wan Daqian, Yan Caixia, Sun Kai, Li Danlan. NUMERICAL RESEARCH ON EROSION AND WEAR OF WIND TURBINE BLADES IN SAND-CARRYING WIND[J]. Acta Energiae Solaris Sinica. 2022, 43(7): 257-263 https://doi.org/10.19912/j.0254-0096.tynxb.2021-1002

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