On the formation of the chain of ring-like vortices in a transitional boundary layer

被引：0
|
作者：
C. B. Lee
S. Fu
机构：
[1] Laboratory of Fluid Mechanics Department of Engineering Mechanics Tsinghua University,
[2] Beijing 100084,undefined
[3] P.R. China,undefined
[4] State Key Laboratory for Turbulence Research of Peking University,undefined
[5] Beijing 100871,undefined
[6] P.R. China,undefined
来源：
Experiments in Fluids | 2001年 / 30卷
关键词：
Vortex; Boundary Layer; Experimental Observation; Laminar Flow; Nonlinear Evolution;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
One mechanism by which laminar flow becomes turbulence is through the instability of vortex interaction. The nonlinear evolution of the interactions between the Λ-vortex and the secondary closed vortex has been investigated. This nonlinear instability process leads to some fundamental changes in the topology of flows. Experimental observations are presented here showing the formation of a chain of ring-like vortices, which generate high-frequency spikes on time traces in a transitional boundary layer.
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页码：354 / 357
页数：3
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