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An experimental study of bubble deformation in viscous liquids in simple shear flow
Author(s) -
Canedo Eduardo L.,
Favelukis Moshe,
Tadmor Zehev,
Talmon Yeshayahu
Publication year - 1993
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690390403
Subject(s) - bubble , capillary action , mechanics , simple shear , capillary number , deformation (meteorology) , newtonian fluid , viscous liquid , materials science , shear (geology) , coaxial , flow (mathematics) , shear flow , composite material , physics , mechanical engineering , engineering
An experimental study of the deformation of gas bubbles in viscous Newtonian liquids subjected to simple shear flow has been undertaken as a first step toward understanding bubble dynamics in polymer processing. Measurements of the shape, interfacial area, and volume of air bubbles suspended in the gap between two coaxial, counterrotating cylinders are presented and discussed as function of capillary number. At high capillary numbers (high deformations), the experiments confirm the theoretical model of Hinch and Acrivos.