Dynamic stabilization of the Rayleigh-Taylor instability of miscible liquids and the related “frozen waves”

Superimposed miscible liquids, the heavier one on top, when subjected to vibrations vertical to their interface (dynamic stabilization), can only be maintained for a certain period. A mechanism is presented explaining the resulting process of degradation and “anomalous diffusion” through that interf...

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Bibliographic Details
Published inPhysics of fluids (1994) Vol. 30; no. 2
Main Author Wolf, Gerd (Gerhard) H.
Format Journal Article
LanguageEnglish
Published 01.02.2018
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Summary:Superimposed miscible liquids, the heavier one on top, when subjected to vibrations vertical to their interface (dynamic stabilization), can only be maintained for a certain period. A mechanism is presented explaining the resulting process of degradation and “anomalous diffusion” through that interface. Superimposed liquids, the lighter one on top, exposed to horizontal vibrations, develop a saw-tooth-like pattern called “frozen waves.” These are subject to conditions similar to those of dynamic stabilization and, if miscible, thus can also only be maintained for a certain period. A further analysis of these processes would be desirable, also in view of their relation to analogue phenomena.
ISSN:1070-6631
1089-7666
DOI:10.1063/1.5017846