Three-sphere low-Reynolds-number swimmer with a cargo container |
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Authors: | R Golestanian |
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Institution: | (1) Department of Physics and Astronomy, University of Sheffield, S3 7RH Sheffield, UK |
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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. |
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Keywords: | 87 19 ru Locomotion 47 15 G- Low-Reynolds-number (creeping) flows 62 25 -g Mechanical properties of nanoscale systems |
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