Dynamic regimes of hydrodynamically coupled self-propelling particles

Isaac Llopis; Ignacio Pagonabarraga

doi:10.1209/epl/i2006-10201-y

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arXiv · cond-mat/0609511

Dynamic regimes of hydrodynamically coupled self-propelling particles

Isaac Llopis·Ignacio Pagonabarraga

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Abstract

We analyze the collective dynamics of self-propelling particles (spps) which move at small Reynolds numbers including the hydrodynamic coupling to the suspending solvent through numerical simulations. The velocity distribution functions show marked deviations from Gaussian behavior at short times, and the mean-square displacement at long times shows a transition from diffusive to ballistic motion for appropriate driving mechanism at low concentrations. We discuss the structures the spps form at long times and how they correlate to their dynamic behavior.

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Isaac Llopis, Ignacio Pagonabarraga. 2006-09-20. Dynamic regimes of hydrodynamically coupled self-propelling particles. https://doi.org/10.1209/epl%2Fi2006-10201-y

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