Dynamics of bacterial flow: Emergence of spatiotemporal coherent structures

Details Dynamics of bacterial flow: Emergence of spatiotemporal coherent structures Dynamics of bacterial flow: Emergence of spatiotemporal coherent structures

2007-07-15

arxiv.org/abs/0707.2235v1

Phys. Lett. A 360, 507 (2007)

Physics

Condensed Matter

Soft Condensed Matter

5 pages, 4 figures

Scientific paper

10.1016/j.physleta.2006.08.064

We propose a simple model of self-propelled particles to show that coherent structures, such as jets and swirls, can arise from a plausible microscopic mechanisms: (i) the elongated shape of the self-propelled particles with (ii) the hardcore interactions among them. We demonstrate via computer simulation that these coherent structures, which emerge at sufficiently high densities of particles, have characteristics that are similar to those observed in recent experiments in bacteria baths.

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