Active suspensions and their nonlinear models

David Saintillan, Michael Shelley

Research output: Contribution to journalArticle

Abstract

Active suspensions, such as suspensions of self-propelled microorganisms and related synthetic microswimmers, are known to undergo complex dynamics and pattern formation as a result of hydrodynamic interactions. In this review, we summarize recent efforts to model these systems using continuum kinetic theories. We first derive a basic kinetic model for a suspension of self-propelled rodlike particles and discuss its stability and nonlinear dynamics. We then present extensions of this model to analyze the effective rheology of active suspensions in external flows, the effect of steric interactions in concentrated systems, and the dynamics of chemotactically responsive suspensions in chemical fields.

Original languageEnglish (US)
Pages (from-to)497-517
Number of pages21
JournalComptes Rendus Physique
Volume14
Issue number6
DOIs
StatePublished - Jun 2013

Fingerprint

microorganisms
kinetic theory
rheology
hydrodynamics
interactions
continuums
kinetics

Keywords

  • Active suspension
  • Hydrodynamic interactions
  • Instability
  • Kinetic theory
  • Swimming microorganisms

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Active suspensions and their nonlinear models. / Saintillan, David; Shelley, Michael.

In: Comptes Rendus Physique, Vol. 14, No. 6, 06.2013, p. 497-517.

Research output: Contribution to journalArticle

Saintillan, David ; Shelley, Michael. / Active suspensions and their nonlinear models. In: Comptes Rendus Physique. 2013 ; Vol. 14, No. 6. pp. 497-517.
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