Scattering and nonlinear bound states of hydrodynamically coupled particles in a narrow channel
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Uspal-2012-Scattering and nonlinear bound states of.pdf
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Author(s)
Doyle, Patrick S.
Uspal, William Eric
Date Issued
January 2012
Journal
Physical Review E
Publisher
American Physical Society
Citation
Uspal, William, and Patrick Doyle. “Scattering and Nonlinear Bound States of Hydrodynamically Coupled Particles in a Narrow Channel.” Physical Review E 85.1 (2012). ©2012 American Physical Society
Version
Final published version
Abstract
We model a pair of hydrodynamically interacting particles confined in a channel with thin rectangular cross section. We find that the particles have a finite region of attraction, which arises from the screening of dipolar hydrodynamic interactions by the side walls. Outside this region, the two particles break apart and scatter; inside, they oscillate together as an effectively free quasiparticle. We demonstrate that modulation of channel geometry provides a means to irreversibly manipulate bound pairs.
MIT Department
Massachusetts Institute of Technology. Department of Chemical Engineering
Massachusetts Institute of Technology. Department of Physics
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevE.85.016325
