Shear instabilities in Taylor-Couette flow

被引：0

作者：

Meseguer, A. ^{[1
]}

Mellibovsky, F. ^{[1
]}

Marques, F. ^{[1
]}

Avila, M. ^{[2
]}

机构：

[1] Univ Politecn Cataluna, Dept Appl Phys, E-08028 Barcelona, Spain

[2] Max Planck Inst Dynam & Self Org, Gottingen, Germany

来源：

ADVANCES IN TURBULENCE XII - PROCEEDINGS OF THE 12TH EUROMECH EUROPEAN TURBULENCE CONFERENCE | 2009年 / 132卷

关键词：

D O I：

10.1007/978-3-642-03085-7_27

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Subcritical instabilities in small gap Taylor-Couette (TCF) problem are studied numerically when both cylinders rotate in opposite directions. The computations are carried out for a radius ratio eta = r(i)/r(o) = 0.883. A first exploration is focused on the study of spiral flows originated from subcritical Hopf bifurcations of the basic circular Couette solution. The second exploration addresses the transition from laminar flow to the usually termed as spiral turbulence regime characterized by alternating laminar and turbulent spiral bands which coexist even in regions of the parameter space where the circular Couette flow is linearly stable.

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页码：115 / 118

页数：4

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