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Title:	Velocity fluctuations and hydrodynamic diffusion in sedimentation
Author:	Miguel Lopez, M. Del Carmen; Pastor Satorras, Romualdo
Other authors:	Universitat Politècnica de Catalunya. Departament de Física; Universitat Politècnica de Catalunya. SC-SIMBIO - Sistemes complexos. Simulació discreta de materials i de sistemes biològics
Abstract:	We study non-equilibrium velocity fluctuations in a model for the sedimentation of non-Brownian particles experiencing long-range hydrodynamic interactions. The complex behavior of these fluctuations, the outcome of the collective dynamics of the particles, exhibits many of the features observed in sedimentation experiments. In addition, our model predicts a final relaxation to an anisotropic (hydrodynamic) diffusive state that could be observed in experiments performed over longer time ranges.
Subject(s):	-Àrees temàtiques de la UPC::Física -Sedimentation and deposition -Fluctuations (Physics) -Velocity fluctuations in sedimentation -Hydrodynamic diffusion in sedimentation -Sedimentació -Fluctuacions (Física)
Rights:	Attribution-NonCommercial-NoDerivs 3.0 Spain http://creativecommons.org/licenses/by-nc-nd/3.0/es/
Document type:	Article - Submitted version Article
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