THREE-DIMENSIONAL EVOLUTION OF VORTICES AND EARLY FEATURES OF COHERENT STRUCTURE IN THE TURBULENT WAKE BEHIND A 2-D CIRCULAR CYLINDER

IMECH-IR > 力学所知识产出(1956-2008)

	THREE-DIMENSIONAL EVOLUTION OF VORTICES AND EARLY FEATURES OF COHERENT STRUCTURE IN THE TURBULENT WAKE BEHIND A 2-D CIRCULAR CYLINDER
	Ling GC(凌国灿); Wu ZB(武作兵)
发表期刊	ACTA MECHANICA SINICA
	1993
卷号	9 期号:3 页码:223-232
摘要	3-D evolution of Kgrms vortex filaments and vortex filaments in braid regions in the turbulent wake of a 2-D circular cylinder is investigated numeri- cally based on inviscid vortex dynamics by analyzing the response of the initially 2-D spanwise vortex filaments to periodic spanwise disturbance of varying magnitude, wavelength and initial phase angles. Our results reveal a kind of 3-D vortex system in the wake which consists of large scale horseshoe-shaped vortices and small scale ),-shaped vortex filaments as well as vortex loops. The mechanism and the dynamic process about the generation of streamwise vortical structure and the 3-D coherent structure are reported.
关键词	Three-dimensional Evolution Coherent Structure Wake Flow
学科领域	流体力学
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收录类别	EI
语种	英语
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/49888
专题	力学所知识产出(1956-2008)
作者单位	LNM, Institute of Mechanics, Chinese Academy of Sciences
推荐引用方式 GB/T 7714	Ling GC,Wu ZB. THREE-DIMENSIONAL EVOLUTION OF VORTICES AND EARLY FEATURES OF COHERENT STRUCTURE IN THE TURBULENT WAKE BEHIND A 2-D CIRCULAR CYLINDER[J]. ACTA MECHANICA SINICA,1993,9,3,:223-232.
APA	Ling GC,&Wu ZB.(1993).THREE-DIMENSIONAL EVOLUTION OF VORTICES AND EARLY FEATURES OF COHERENT STRUCTURE IN THE TURBULENT WAKE BEHIND A 2-D CIRCULAR CYLINDER.ACTA MECHANICA SINICA,9(3),223-232.
MLA	Ling GC,et al."THREE-DIMENSIONAL EVOLUTION OF VORTICES AND EARLY FEATURES OF COHERENT STRUCTURE IN THE TURBULENT WAKE BEHIND A 2-D CIRCULAR CYLINDER".ACTA MECHANICA SINICA 9.3(1993):223-232.

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