Linear instability in Rayleigh-stable Taylor-Couette flow

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Abstract

Rayleigh's stability criterion describes the inviscid stability of rotating fluid flows. Despite the limitations of the criterion due to the assumptions used, it has been widely viewed as a general stability barrier in various rapidly rotating flows. However, contrary to previous belief, a linear instability is identified in Rayleigh-stable Taylor-Couette flow. The instability is found in cyclonic rapid rotation regime, for almost the entire range of the radius ratio of the cylinders.

Original languageEnglish
Article number021102
Number of pages5
JournalPhysical Review E
Volume95
Issue number2
DOIs
Publication statusPublished - 28 Feb 2017

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