Foam drainage on the microscale - II. Imaging flow through single Plateau borders

S.A. Koehler, Sascha Hilgenfeldt, E.R. Weeks, H.A. Stone

Research output: Contribution to journalArticleAcademicpeer-review

60 Citations (Scopus)

Abstract

The liquid in foam forms an interconnected network, which is composed of Plateau borders, nodes, and films. One of the dominant pathways for foam drainage is flow through Plateau borders, and we use confocal microscopy to obtain experimental results for the flow fields inside individual Plateau borders. For three types of surfactants detailed comparisons are made with a model based upon the influence of surface viscosity at free boundaries between the gas in the bubbles and the liquid in the Plateau borders. The model describes the flows well, and we find good agreement between the surface viscosity predicted by this model and representative values found in the literature. We also give a qualitative description of the flow in the nodes.
Original languageEnglish
Pages (from-to)439-449
Number of pages11
JournalJournal of colloid and interface science
Volume276
Issue number2
DOIs
Publication statusPublished - 2004

Keywords

  • METIS-218708
  • IR-47815

Fingerprint Dive into the research topics of 'Foam drainage on the microscale - II. Imaging flow through single Plateau borders'. Together they form a unique fingerprint.

Cite this