Stable localized patterns in thin liquid films

A two-dimensional nonlinear evolution equation is studied which describes the three-dimensional spatiotemporal behavior of the air-liquid interface of a thin liquid film lying on the underside of a cooled horizontal plate. It is shown that the equation has a Liapunov functional, and this fact is exp...

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Veröffentlicht in:Physical review letters 1992-05, Vol.68 (19, M), p.2948-2951
Hauptverfasser: Deissler, Robert J., Oron, Alexander
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Oron, Alexander
description A two-dimensional nonlinear evolution equation is studied which describes the three-dimensional spatiotemporal behavior of the air-liquid interface of a thin liquid film lying on the underside of a cooled horizontal plate. It is shown that the equation has a Liapunov functional, and this fact is exploited to demonstrate that the Marangoni effect can stabilize the destabilizing effect of gravity (the Rayleigh-Taylor instability), allowing for the existence of stable localized axisymmetric solutions for a wide range of parameter values. Various properties of these structures are discussed.
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source American Physical Society Journals; NASA Technical Reports Server
subjects Condensed matter: structure, mechanical and thermal properties
Exact sciences and technology
Fluid Mechanics And Heat Transfer
Liquid thin films
Physics
Surfaces and interfaces
thin films and whiskers (structure and nonelectronic properties)
title Stable localized patterns in thin liquid films
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