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Falling clouds of particles in vortical flows

Published online by Cambridge University Press:  10 December 2020

Benjamin Marchetti ,
Laurence Bergougnoux Open the ORCID record for Laurence Bergougnoux [Opens in a new window]  and
Elisabeth Guazzelli Open the ORCID record for Elisabeth Guazzelli [Opens in a new window]
Benjamin Marchetti
Affiliation:
Aix Marseille Université, CNRS, IUSTI, 13453Marseille, France
Laurence Bergougnoux*
Affiliation:
Aix Marseille Université, CNRS, IUSTI, 13453Marseille, France
Elisabeth Guazzelli
Affiliation:
Université de Paris, CNRS, Matière et Systèmes Complexes (MSC) UMR 7057, 75205Paris, France
*
†Email address for correspondence: laurence.bergougnoux@univ-amu.fr
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Abstract

The coupling between particle–particle and particle–fluid interactions is examined by studying the sedimentation of clouds of spheres in a model cellular flow at a small but finite Reynolds number. The model flow consists of counter-rotating vortices and is aimed at capturing key features of the vortical effects on particles. The dynamics of clouds settling in this vortical flow is investigated through a comparison between experiments and point-particle simulations.

JFM classification

Complex Fluids: Suspensions Multiphase and Particle-laden Flows: Particle/fluid flow
Type
JFM Papers
Information
Journal of Fluid Mechanics , Volume 908 , 10 February 2021 , A30
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Copyright
© The Author(s), 2020. Published by Cambridge University Press

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