Scattering and nonlinear bound states of hydrodynamically coupled particles in a narrow channel
Author(s)
Doyle, Patrick S.; Uspal, William Eric
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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.
Date issued
2012-01Department
Massachusetts Institute of Technology. Department of Chemical Engineering; Massachusetts Institute of Technology. Department of PhysicsJournal
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
ISSN
1539-3755
1550-2376