A Theoretical Model of Striated Film-Rupture

[+] Author and Article Information
C. Fall

School of Mathematics, Statistics and Computing, Newcastle upon Tyne Polytechnic, Newcastle upon Tyne, England

J. of Lubrication Tech 104(2), 164-167 (Apr 01, 1982) (4 pages) doi:10.1115/1.3253175 History: Received August 27, 1980; Online November 13, 2009


In general, when a thin film of viscous fluid ruptures in the diverging region of flow between a spreader (or roller) and a flat plate, the cavity formed is not uniform, but appears as adjacent air fingers separated by streamers of fluid. A time-dependent linear perturbation analysis is used to examine the nature of such striated film-rupture and, specifically, to predict the number of striations per unit width for varying minimum gap width and the parameter (ηU/T). Good agreement between theory and experiment is obtained.

Copyright © 1982 by ASME
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