Non-Poisson statistics of settling spheres
Author(s) -
Laurence Bergougnoux,
Élisabeth Guazzelli
Publication year - 2009
Publication title -
physics of fluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.188
H-Index - 180
eISSN - 1089-7666
pISSN - 1070-6631
DOI - 10.1063/1.3231828
Subject(s) - settling , suspension (topology) , sedimentation , spheres , poisson distribution , mixing (physics) , particle (ecology) , tracking (education) , physics , statistical physics , mechanics , materials science , classical mechanics , statistics , mathematics , thermodynamics , geology , pure mathematics , geomorphology , psychology , pedagogy , oceanography , quantum mechanics , astronomy , homotopy , sediment
International audienceDirect tracking of the particle positions in a sedimenting suspension indicates that the particles are not simply randomly distributed. The initial mixing of the suspension leads to a microstructure which consists of regions devoid of particles surrounded by regions where particles have an excess of close neighbors and which is maintained during sedimentation
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