Dynamic regimes of hydrodynamically coupled self-propelling particles

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, a...

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Bibliographic Details
Published inEurophysics letters Vol. 75; no. 6; pp. 999 - 1005
Main Authors Llopis, I, Pagonabarraga, I
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.09.2006
EDP Sciences
Subjects
05.10.-a
82.70.Dd
87.18.Hf
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Summary: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.
Bibliography:istex:EA50EB9D7FE9F9194CC3207DE7CA334154A44DB7
publisher-ID:epl9536
ark:/67375/80W-60XTRK46-P
ObjectType-Article-2
SourceType-Scholarly Journals-1
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content type line 23
ISSN:0295-5075
1286-4854
DOI:10.1209/epl/i2006-10201-y