Résumé :
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In many experiments, especially those investigating aspects of fluid flow, it is common to observe time series data exhibiting chaos. Chaos lies in the realm of nonlinear dynamics, and specialized methods are available for the analysis of nonlinear time series. One particuliar method, called time delay analysis, is particularly useful for extracting information from time series representing measurements at a single point in space. In this thesis, hot-wire anemometry is used to obtain velocity time series from experiments on isothermal Taylor-Couette flow. For R/R(c)=1.6. a single limit cycle is observed, yielding an attractor of dimension 1. For R/R(c)=11.1. the attractor dimension increases, and the reconstructed attractor exhibits features characteristics of a transition to turbulence. In addition, various other states and transitions of the Taylor-Couette system are studied as well.
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