Study on influence of V-groove on flow field distribution and aerodynamic performance of blunt trailing edge airfoil

doi:10.19912/j.0254-0096.tynxb.2020-0811

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	Study on influence of V-groove on flow field distribution and aerodynamic performance of blunt trailing edge airfoil
	Yang, Rui 1,2; Gu, Enxin 1; Zhou, Nannan 1; Yang, Wei 1; Wen, Weiyue 1; Chen, Zhilong 1
刊名	Taiyangneng Xuebao/Acta Energiae Solaris Sinica
	2022-04-28
卷号	43 期号:4 页码:402-408
关键词	Aerodynamic drag Aerodynamic stalling Airfoils Angle of attack Boundary layers Computational fluid dynamics Drag reduction Flow separation Lift Lift drag ratio Turbulence models Aero-dynamic performance Airfoil surfaces Blunt trailing edge airfoils Flow field distribution Model use On flow SST turbulence models Trailing edges V grooves V-groove
ISSN号	0254-0096
DOI	10.19912/j.0254-0096.tynxb.2020-0811
英文摘要	Based on the k-ω SST turbulence model, use the commercial CFD tool ANSYS Fluent 16.0 to numerically simulate the DU35-17 original airfoil, blunt trailing edge modified airfoil, and V-groove blunt trailing edge airfoil. The lift-drag coefficient, flow field distribution and surface pressure coefficient before and after the airfoil modification are compared and analyzed. The results show that the airfoil is configured with V-grooves while blunt trailing edge modification is performed. By changing the pressure distribution at the airfoil trailing edge and the flow distribution on the airfoil surface, it has a positive effect on the suppression of flow separation. The blunt trailing edge airfoil with V-groove can increase the pressure coefficient difference between the upper and lower airfoil surfaces of the airfoil, and reduce the flow deceleration caused by the gas viscosity in the airfoil boundary layer, thereby achieving the effect of reducing drag and increasing rise. To arrange V-grooves can effectively improve the maximum lift coefficient and stall angle of attack, reduce the leading edge pressure fluctuations, and improve the aerodynamic performance of the airfoil. © 2022, Solar Energy Periodical Office Co., Ltd. All right reserved.
语种	中文
出版者	Science Press
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/158376]
专题	兰州理工大学
作者单位	1.School of Energy and Power Engineering of Lanzhou University of Technology, Lanzhou; 730050, China; 2.Gansu Wind Turbine Engineering Technology Center, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Yang, Rui,Gu, Enxin,Zhou, Nannan,et al. Study on influence of V-groove on flow field distribution and aerodynamic performance of blunt trailing edge airfoil[J]. Taiyangneng Xuebao/Acta Energiae Solaris Sinica,2022,43(4):402-408.
APA	Yang, Rui,Gu, Enxin,Zhou, Nannan,Yang, Wei,Wen, Weiyue,&Chen, Zhilong.(2022).Study on influence of V-groove on flow field distribution and aerodynamic performance of blunt trailing edge airfoil.Taiyangneng Xuebao/Acta Energiae Solaris Sinica,43(4),402-408.
MLA	Yang, Rui,et al."Study on influence of V-groove on flow field distribution and aerodynamic performance of blunt trailing edge airfoil".Taiyangneng Xuebao/Acta Energiae Solaris Sinica 43.4(2022):402-408.