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arXiv · 1710.08339

Clustering of Magnetic Swimmers in a Poiseuille Flow

Fanlong Meng·Daiki Matsunaga·Ramin Golestanian
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Abstract

We investigate the collective behavior of magnetic swimmers, which are suspended in a Poiseuille flow and placed under an external magnetic field, using analytical techniques and Brownian dynamics simulations. We find that the interplay between intrinsic activity, external alignment, and magnetic dipole-dipole interactions leads to longitudinal structure formation. Our work sheds light on a recent experimental observation of a clustering instability in this system.

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Fanlong Meng, Daiki Matsunaga, Ramin Golestanian. 2017-10-23. Clustering of Magnetic Swimmers in a Poiseuille Flow. https://doi.org/10.1103/physrevlett.120.188101

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