CENTRIFUGAL INSTABILITY OF PULSED FLOW

被引：29

作者：

AOUIDEF, A ^{[1
]}

NORMAND, C ^{[1
]}

STEGNER, A ^{[1
]}

WESFREID, JE ^{[1
]}

机构：

[1] CE SACLAY,PHYS THEOR SERV,F-91191 GIF SUR YVETTE,FRANCE

来源：

PHYSICS OF FLUIDS | 1994年 / 6卷 / 11期

关键词：

D O I：

10.1063/1.868423

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The stability of a pulsed flow in a Taylor-Couette geometry with both cylinders rotating at the same angular velocity Omega(t)=Omega(o) cos (omega t) is investigated. The first experimental evidence showing that the flow is less unstable in the limit of low and high frequency while destabilization is maximum for an intermediate frequency omega(o) is reported. A detailed analysis of the restabilization at frequencies just above omega(o) reveals a behavior not accounted for by previous theoretical analysis. Thus, the linear stability analysis is reconsidered by using a different implementation of the Floquet theory and a satisfactory agreement with the present experimental results is found.

引用

页码：3665 / 3676

页数：12

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