The effects of surfactant on the dynamics of bubble snap-off

T. M. Tsai*, Michael J Miksis

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

The effects of an insoluble surfactant on the motion of a drop or bubble as it is driven by a pressure gradient through a capillary tube is investigated numerically. We find that a drop in a straight capillary tube can either approach a steady-state shape or develop a re-entrant cavity at its rear. For a gas bubble moving through a constricted capillary tube, we find that snap-off can occur and surfactants enhance the snap-off process. The effects of the parameters on the dynamics of bubble snap-off are illustrated and discussed.

Original languageEnglish (US)
Pages (from-to)381-410
Number of pages30
JournalJournal of fluid Mechanics
Volume337
DOIs
StatePublished - Apr 25 1997

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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