Azimuthal mode interaction in counter-rotating Taylor-Couette flow

C. Stern, P. Chossat, F. Hussain

Research output: Contribution to journalArticle

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Abstract

The stability of flows near two critical points (in parameter space) at which Couette flow looses stability simultaneously to two non-axisymmetric wavenumbers has been studied experimentally. The findings are compared with the theoretical predictions of [Chossat et al., 1987], hereafter cited as CDI. In the case of the first critical point, resulting from the interaction of azimuthal wavenumbers m = 1 and m = 2, some quantitative disagreements with predictions were observed. The second point, resulting from the interaction between m = 2 and m = 3, was found at a slightly different location than that predicted by the theory. A transition to a seemingly chaotic regime was observed in addition to the transitions predicted by CDI. Experiments also show a nonperiodic amplitude variation of the velocity signal and a first transition to a doubly-periodic flow.

Original languageEnglish
Pages (from-to)93-106
Number of pages14
JournalEuropean Journal of Mechanics, B/Fluids
Volume9
Issue number1
StatePublished - 1990

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