EXPERIMENTAL STUDY ON ROUGHNESS SENSITIVITY OF YD-THICK WIND TURBINE AIRFOILS

Chen Qi; Gong Yuxiang; Zhou Xiaoliang; Li Yongliang; Zhou Minqiang

doi:10.19912/j.0254-0096.tynxb.2020-1014

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (7) : 417-423. DOI: 10.19912/j.0254-0096.tynxb.2020-1014

EXPERIMENTAL STUDY ON ROUGHNESS SENSITIVITY OF YD-THICK WIND TURBINE AIRFOILS

Chen Qi, Gong Yuxiang, Zhou Xiaoliang, Li Yongliang, Zhou Minqiang

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Abstract

In this paper, the effect of roughness sensitivity on the performance of the thick wind turbine airfoils was studied in NF-3 low speed airfoil wind tunnel of Northwestern Polytechnical University, based on three YD - blunt trailing edge wind turbine airfoils （35%, 40% and 60% relative thickness）. The results show that the leading edge roughness has a great influence on the performance of thick airfoils, resulting in a sharp decrease in the lift coefficient slope and the maximum lift coefficient, and the early separation of the flow at the trailing edge of the suction surface.

Key words

wind turbines / thick airfoil / roughness sensitivity / aerodynamic performance / wind tunnel experiment

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Chen Qi, Gong Yuxiang, Zhou Xiaoliang, Li Yongliang, Zhou Minqiang. EXPERIMENTAL STUDY ON ROUGHNESS SENSITIVITY OF YD-THICK WIND TURBINE AIRFOILS[J]. Acta Energiae Solaris Sinica. 2022, 43(7): 417-423 https://doi.org/10.19912/j.0254-0096.tynxb.2020-1014

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