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

  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},
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… 

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  • K. HöflerS. Schwarzer
  • Physics
    Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics
  • 2000
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