Collinear swimmer propelling a cargo sphere at low Reynolds number

Abstract

The swimming velocity and rate of dissipation of a linear chain consisting of two or three little spheres and a big sphere is studied on the basis of low Reynolds number hydrodynamics. The big sphere is treated as a passive cargo, driven by the tail of little spheres via hydrodynamic and direct elastic interaction. The fundamental solution of Stokes' equations in the presence of a sphere with no-slip boundary condition, as derived by Oseen, is used to model the hydrodynamic interactions between the big sphere and the little spheres.

arXiv comment15 pages, 9 figures

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Cited by in corpus (5)

• Active Particles in Complex and Crowded Environments
• Intermediate scattering function of an anisotropic active Brownian particle
• Hydrodynamic interactions between a sphere and a number of small particles
• Load response of shape-changing microswimmers scales with their energy efficiency
• Swimming of a linear chain with a cargo in an incompressible viscous fluid with inertia