Viscous damping and instabilities in stratified liquid film flowing down a slightly inclined plane

Igor L. Kliakhandler, Gregory I. Sivashinsky

Research output: Contribution to journalArticlepeer-review

Abstract

A reduced nonlinear model for density stratified viscous film flowing down a slightly inclined wall is derived and explored. Under buoyancy stable stratification the system exhibits various long-wavelength instabilities of noninertial, purely kinetic origin. Unlike many existing models for the film interface evolution in the present study regularization of the pertinent long-scale dynamics is provided directly by the film viscosity rather than surface tension.

Original languageEnglish
Pages (from-to)23-30
Number of pages8
JournalPhysics of Fluids
Volume9
Issue number1
DOIs
StatePublished - Jan 1997

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