Vertex corrections in the theory of foam drainage

S. J. Cox*, G. Bradley, S. Hutzler, D. Weaire

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

28 Citations (SciVal)


The experimental results of Koehler and co-workers have indicated that vertices (nodes) can in some cases play a dominant role in the dissipative process that controls foam drainage. We present calculations of numerical constants that can express the effect of the vertices, in a first approximation. Two limiting cases are treated: Poiseuille flow, and free-boundary flow (in the sense that the stress at the surface of the Plateau borders is everywhere zero). Consequences for the relationship between average flow velocity and volume flow rate in steady drainage are indicated.

Original languageEnglish
Pages (from-to)4863-4869
Number of pages7
JournalJournal of Physics Condensed Matter
Issue number21
Publication statusPublished - 28 May 2001


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