Journal
EUROPHYSICS LETTERS
Volume 75, Issue 6, Pages 999-1005Publisher
EDP SCIENCES S A
DOI: 10.1209/epl/i2006-10201-y
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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 longtimes shows a transition from diffusive to ballistic motion for appropriate driving mechanism at low concentrations. We discuss the structures the spps form at longtimes and how they correlate to their dynamic behavior.
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