Characterizing three-dimensional features of vortex surfaces in the flow past a finite plate

doi:10.1063/1.5134551

IMECH-IR > 非线性力学国家重点实验室

	Characterizing three-dimensional features of vortex surfaces in the flow past a finite plate
	Tong WW 1; Yang Y(杨越)1,2,3 ; Wang SZ(王士召)4,5
通讯作者	Yang, Yue(yyg@pku.edu.cn)
发表期刊	PHYSICS OF FLUIDS
	2020
卷号	32 期号:1 页码:15
ISSN	1070-6631
摘要	We extend the vortex-surface field (VSF), a Lagrangian-based structure identification method, to investigate vortex dynamics in flows past a plate simulated by the immersed boundary method. As an example, the VSF evolution characterizes the three-dimensional features of vortex surfaces in the flow past a finite plate at the Reynolds number of 300, aspect ratio of 2, and angle of attack of 30 degrees. The VSF isosurface displays that near-plate vortex surfaces first roll up from plate edges and then evolve into hairpinlike structures near the leading edge and semiring structures near plate tips and in the wake. We quantitatively distinguish two types of vortical structures by the vanishing streamwise vorticity on VSF isosurfaces and refer them to as the leading edge vortex (LEV) and the tip vortex (TIV). Based on circulations through cross sections of vortex surfaces, we demonstrate that the lift generated from the LEV is suppressed by the finite growth of TIVs. In the wake region, we quantify the geometry of helical vortex lines in TIVs and the contribution of the helical vorticity component to the streamwise vortical impulse. Published under license by AIP Publishing.
DOI	10.1063/1.5134551
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000525847200006
关键词[WOS]	PROPULSIVE PERFORMANCE ; AERODYNAMIC FORCE ; WAKE STRUCTURE ; TAYLOR-GREEN ; EVOLUTION ; VORTICES ; FIELDS ; WINGS ; LIFT
WOS研究方向	Mechanics ; Physics
WOS类目	Mechanics ; Physics, Fluids & Plasmas
资助项目	National Natural Science Foundation of China[91952108] ; National Natural Science Foundation of China[11925201] ; National Natural Science Foundation of China[91841302]
项目资助者	National Natural Science Foundation of China
论文分区	一类/力学重要期刊
力学所作者排名	3
RpAuthor	Yang, Yue
引用统计	被引频次：14[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/81862
专题	非线性力学国家重点实验室
作者单位	1.Peking Univ, Coll Engn, State Key Lab Turbulence & Complex Syst, Beijing 100871, Peoples R China; 2.Peking Univ, CAPT, Beijing 100871, Peoples R China; 3.Peking Univ, BIC ESAT, Beijing 100871, Peoples R China; 4.Chinese Acad Sci, LNM, Inst Mech, Beijing 100190, Peoples R China; 5.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Tong WW,Yang Y,Wang SZ. Characterizing three-dimensional features of vortex surfaces in the flow past a finite plate[J]. PHYSICS OF FLUIDS,2020,32,1,:15.
APA	Tong WW,杨越,&王士召.(2020).Characterizing three-dimensional features of vortex surfaces in the flow past a finite plate.PHYSICS OF FLUIDS,32(1),15.
MLA	Tong WW,et al."Characterizing three-dimensional features of vortex surfaces in the flow past a finite plate".PHYSICS OF FLUIDS 32.1(2020):15.

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