Deformation Behavior of Droplets When Flowing in a Channel with an Abrupt Contraction

Experimental and numerical simulation methods have been used to study deformation behavior of viscous droplets flowing with a Newtonian dispersion medium in a channel with an abrupt contraction. The characteristic features of the evolution of droplet shapes have been revealed depending on their curr...

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Bibliographic Details
Published in:	Colloid journal of the Russian Academy of Sciences Vol. 84; no. 2; pp. 183 - 188
Main Authors:	Patlazhan, S. A., Kravchenko, I. V., Poldushov, M. A., Miroshnikov, Yu. P., Kulichikhin, V. G.
Format:	Journal Article
Language:	English
Published:	Moscow Pleiades Publishing 01-04-2022 Springer Nature B.V
Subjects:	Chemistry Chemistry and Materials Science Deformation Droplets Elongation Microfibers Numerical methods Polymer Sciences Surfaces and Interfaces Thin Films
Online Access:	Get full text
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Summary:	Experimental and numerical simulation methods have been used to study deformation behavior of viscous droplets flowing with a Newtonian dispersion medium in a channel with an abrupt contraction. The characteristic features of the evolution of droplet shapes have been revealed depending on their current position relative to the entrance into the contraction region. Droplet elongation has been investigated as a function of the confinement parameter, i.e., the ratio of the initial droplet diameter to the cross-sectional size of the narrow part of the channel. The mechanisms of microfiber formation in a convergent flow have been analyzed.
ISSN:	1061-933X 1608-3067
DOI:	10.1134/S1061933X22020089