Three-sphere low-Reynolds-number swimmer with a cargo container

Golestanian, R.

doi:10.1140/epje/i2007-10276-2

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Three-sphere low-Reynolds-number swimmer with a cargo container

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Golestanian, R.
Department of Living Matter Physics, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

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Golestanian, R. (2008). Three-sphere low-Reynolds-number swimmer with a cargo container. European Physical Journal E, 25(1), 1-4. doi:10.1140/epje/i2007-10276-2.

Cite as: https://hdl.handle.net/21.11116/0000-0001-A6DE-A

Abstract

A recently introduced model for an autonomous swimmer at low Reynolds number that is comprised of three spheres connected by two arms is considered when one of the spheres has a large radius. The Stokes hydrodynamic flow associated with the swimming strokes and net motion of this system can be studied analytically using the Stokes Green's function of a point force in front of a sphere of arbitrary radius R provided by Oseen. The swimming velocity is calculated, and shown to scale as 1/R 3 with the radius of the sphere. © 2008 EDP Sciences, Società Italiana di Fisica and Springer-Verlag.