Nonlinear saturation of Rayleigh–Taylor instability in thin films

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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Veröffentlicht in:Phys. Fluids; (United States) 1983-11, Vol.26 (11), p.3159-3161
Hauptverfasser: Babchin, A. J., Frenkel, A. L., Levich, B. G., Sivashinsky, G. I.
Format: Artikel
Sprache:eng
Schlagworte:
656000 - Condensed Matter Physics
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
DISTURBANCES
Exact sciences and technology
Fluid dynamics
Fundamental areas of phenomenology (including applications)
Hydrodynamic stability
INSTABILITY
INTERFACES
NONLINEAR PROBLEMS
Physics
RAYLEIGH-TAYLOR INSTABILITY
SATURATION
SURFACE PROPERTIES
SURFACE TENSION
THIN FILMS
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Beschreibung
Zusammenfassung: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