Wave patterns of a rivulet of surfactant solution in a Hele-Shaw cell

When a stream of surfactant solution is injected at a constant rate between two narrowly spaced, vertical glass plates, the straight rivulet becomes unstable at a critical flow rate. Various regimes are encountered, in which upward and downward traveling waves of remarkable regularity are observed....

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Bibliographic Details
Published in:Physics of fluids (1994) 2004-08, Vol.16 (8), p.3115-3121
Main Authors: Drenckhan, W., Gatz, S., Weaire, D.
Format: Article
Language:English
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Summary:When a stream of surfactant solution is injected at a constant rate between two narrowly spaced, vertical glass plates, the straight rivulet becomes unstable at a critical flow rate. Various regimes are encountered, in which upward and downward traveling waves of remarkable regularity are observed. We present extensive data for these waves and some tentative theory to account for some of their properties.
ISSN:1070-6631
1089-7666
DOI:10.1063/1.1766211