Dynamics of a circular array of liquid columns |
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| Authors: | P Brunet J-M Flesselles L Limat |
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| Institution: | (1) Laboratoire de Physique et Mécanique des Milieux Hétérogènes (PMMH) UMR 7636 of CNRS, ESPCI, 10 rue Vauquelin, 75005 Paris, France;(2) Saint-Gobain Recherche, 39 quai Lucien Lefranc., 93303 Aubervilliers Cedex, France;(3) Laboratoire Matière et Systèmes Complexes, UMR of CNRS, University Paris 7, 2 Place Jussieu, 75005 Paris, France |
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| Abstract: | We report on an experimental study of an array of liquid columns, hanging below an overflowing circular dish fed at a constant
flow-rate. This one-dimensional pattern exhibits spatio-temporal chaos as well as a host of ordered dynamical regimes, depending
on flow-rate, initial positions, number of columns, and liquid properties. In this paper, we present stability diagrams obtained
with liquids of different properties and an extensive quantitative study of the ordered, predictable dynamical states. Some
destabilization mechanisms of these regimes are also presented. |
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| Keywords: | 05 45 -a Nonlinear dynamics and chaos 47 20 Lz Secondary instabilities 47 20 Ma Interfacial instabilities (e g Rayleigh-Taylor) |
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