Nonlinear saturation of Rayleigh–Taylor instability in thin films

A general mechanism of nonlinear saturation of instabiities in flowing films is described using the Rayleigh–Taylor instability as an example. The combined action of flow shear and surface tension is the essence of the saturation mechanism. As a result, the streamwise perturbations of the interface...

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Bibliographic Details
Published in:The Physics of fluids (1958) 1983-11, Vol.26 (11), p.3159-3161
Main Authors: Babchin, A. J., Frenkel, A. L., Levich, B. G., Sivashinsky, G. I.
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fluid dynamics
Fundamental areas of phenomenology (including applications)
Hydrodynamic stability
Physics
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Summary:A general mechanism of nonlinear saturation of instabiities in flowing films is described using the Rayleigh–Taylor instability as an example. The combined action of flow shear and surface tension is the essence of the saturation mechanism. As a result, the streamwise perturbations of the interface that would rupture a stagnant film do not rupture a film flowing in a certain range of shear rates.
ISSN:0031-9171
2163-4998
DOI:10.1063/1.864083