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An experimental study of transient effects in the breakup of viscous drops

Stone, H. A. and Bentley, B. J. and Leal, L. G. (1986) An experimental study of transient effects in the breakup of viscous drops. Journal of Fluid Mechanics, 173 . pp. 131-158. ISSN 0022-1120. http://resolver.caltech.edu/CaltechAUTHORS:20120627-132828376

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Abstract

A computer-controlled four-roll mill is used to examine two transient modes of deformation of a liquid drop: elongation in a steady flow and interfacial-tension-driven motion which occurs after the flow is stopped abruptly. For modest extensions, drop breakup does not occur with the flow on, but may occur following cessation of the flow as a result of deterministic motions associated with internal pressure gradients established by capillary forces. These relaxation and breakup phenomena depend on the initial drop shape and the relative viscosities of the two fluids. Capillary-wave instabilities at the fluid-fluid interface are observed only for highly elongated drops. This study is a natural extension of G. I. Taylor's original studies of the deformation and burst of droplets in well-defined flow fields.


Item Type:Article
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http://dx.doi.org/10.1017/S0022112086001118DOIUNSPECIFIED
http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=392644PublisherUNSPECIFIED
Additional Information:© 1986 Cambridge University Press. Received 19 March 1986. Published online: 21 April 2006. This work was supported by a grant from the Fluid Mechanics Program of the National Science Foundation
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NSF Fluid Mechanics ProgramUNSPECIFIED
Record Number:CaltechAUTHORS:20120627-132828376
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20120627-132828376
Official Citation: H. A. Stone, B. J. Bentley and L. G. Leal (1986). An experimental study of transient effects in the breakup of viscous drops. Journal of Fluid Mechanics, 173 , pp 131-158 doi:10.1017/S0022112086001118
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:32147
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:27 Jun 2012 21:02
Last Modified:26 Dec 2012 15:25

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