Geodesic
Finite-dimensional description of non-newtonian vortex flows
Roger E. Khayat1
1 National Research Council of Canada Industrial Materials Institute 75, de Mortagne Blvd. Boucherville (Qc) J4B 6YA, Canada
ESAIM. Proceedings, Tome 1 (1996), pp. 241-253 Cet article a éte moissonné depuis la source EDP Sciences

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The application of finite-dimensional dynamical systems theory to non-Newtonian vortex flow indicates the presence of complex temporal dynamics that is attributed to shear thinning and normal stress (giving rise to the so-called Weissenberg rod climbing phenomenon). These aspects are examined for Rayleigh-Benard thermal convection and Taylor-Couette rotational flow, in an attempt to elucidate on the mechanisms behind the onset and destabilization of secondary vortex flow common to these and possibly other non-Newtonian flows in the transition regime. Three transition scenarios are particularly explored, namely, the transition to chaos via intermittency, quasiperiodicity and period doubling.
DOI : 10.1051/proc:1996015

Roger E. Khayat 1

1 National Research Council of Canada Industrial Materials Institute 75, de Mortagne Blvd. Boucherville (Qc) J4B 6YA, Canada 
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Roger E. Khayat. Finite-dimensional description of non-newtonian vortex flows. ESAIM. Proceedings, Tome 1 (1996), pp. 241-253. doi: 10.1051/proc:1996015

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