# Chaotic sedimentation of particle pairs in a vertical channel at low Reynolds number: Multiple states and routes to chaos

@article{Verjus2016ChaoticSO, title={Chaotic sedimentation of particle pairs in a vertical channel at low Reynolds number: Multiple states and routes to chaos}, author={Romuald Verjus and Sylvain S. Guillou and Alexander B. Ezersky and J. R. Angilella}, journal={Physics of Fluids}, year={2016}, volume={28}, pages={123303} }

The sedimentation of a pair of rigid circular particles in a two-dimensional vertical channel containing a Newtonian fluid is investigated numerically, for terminal particle Reynolds numbers (ReT) ranging from 1 to 10, and for a confinement ratio equal to 4. While it is widely admitted that sufficiently inertial pairs should sediment by performing a regular DKT oscillation (Drafting-Kissing-Tumbling), the present analysis shows in contrast that a chaotic regime can also exist for such particles…

## 13 Citations

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