Orientational order and instabilities in suspensions of self-locomoting rods

David Saintillan, Michael Shelley

Research output: Contribution to journalArticle

Abstract

The orientational order and dynamics in suspensions of self-locomoting slender rods are investigated numerically. In agreement with previous theoretical predictions, nematic suspensions of swimming particles are found to be unstable at long wavelengths as a result of hydrodynamic fluctuations. Nevertheless, a local nematic ordering is shown to persist over short length scales and to have a significant impact on the mean swimming speed. The consequences of the large-scale orientational disorder for particle dispersion are also discussed.

Original languageEnglish (US)
Article number058102
JournalPhysical Review Letters
Volume99
Issue number5
DOIs
StatePublished - Jul 30 2007

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rods
hydrodynamics
disorders
predictions
wavelengths

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Orientational order and instabilities in suspensions of self-locomoting rods. / Saintillan, David; Shelley, Michael.

In: Physical Review Letters, Vol. 99, No. 5, 058102, 30.07.2007.

Research output: Contribution to journalArticle

Saintillan, David ; Shelley, Michael. / Orientational order and instabilities in suspensions of self-locomoting rods. In: Physical Review Letters. 2007 ; Vol. 99, No. 5.
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