Characterization of hydrodynamic surface interactions of escherichia coli cell bodies in shear flow

Tolga Kaya*, Hur Koser

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

60 Citations (Scopus)

Abstract

We experimentally demonstrate that nonflagellated Escherichia coli strains follow modified Jeffery orbits in shear flow near a surface. We fully characterize their Jeffery orbits as a function of their aspect ratios and distance from that surface. Thanks to the linearity of Navier-Stokes equations under low-Reynolds-number conditions, the hydrodynamic body-wall interactions described here can be superimposed with flagellar motility and Brownian motion to construct models that explain the full picture of bacterial motility near a surface under shear flow.

Original languageEnglish
Article number138103
JournalPhysical Review Letters
Volume103
Issue number13
DOIs
Publication statusPublished - 24 Sept 2009
Externally publishedYes

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