Walls Inhibit Chaotic Mixing

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dc.creatorGouillart, Emmanuelle
dc.creatorKuncio, Natalia
dc.creatorDauchot, Olivier
dc.creatorDubrulle, Berengere
dc.creatorRoux, Stephane
dc.creatorThiffeault, Jean-Luc
dc.date2006-12-21
dc.date2007-10-17
dc.date.accessioned2026-07-07T08:36:41Z
dc.date.available2026-07-07T08:36:41Z
dc.descriptionWe report on experiments of chaotic mixing in a closed vessel, in which a highly viscous fluid is stirred by a moving rod. We analyze quantitatively how the concentration field of a low-diffusivity dye relaxes towards homogeneity, and we observe a slow algebraic decay of the inhomogeneity, at odds with the exponential decay predicted by most previous studies. Visual observations reveal the dominant role of the vessel wall, which strongly influences the concentration field in the entire domain and causes the anomalous scaling. A simplified 1D model supports our experimental results. Quantitative analysis of the concentration pattern leads to scalings for the distributions and the variance of the concentration field consistent with experimental and numerical results.
dc.description4 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0612557
dc.identifierhttp://arxiv.org/abs/cond-mat/0612557
dc.identifierPhys. Rev. Lett. 99, 114501 (2007)
dc.identifierdoi:10.1103/PhysRevLett.99.114501
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/140149
dc.subjectStatistical Mechanics
dc.titleWalls Inhibit Chaotic Mixing
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