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Deformation of drops in extensional viscoelastic flow
Author(s) -
GonzalezNunez R.,
Chan Man Fong C. F.,
Favis B. D.,
De Kee D.
Publication year - 1996
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19961205)62:10<1627::aid-app14>3.0.co;2-z
Subject(s) - extensional definition , capillary action , deformation (meteorology) , viscoelasticity , materials science , capillary number , composite material , extensional viscosity , drop (telecommunication) , polyethylene , flow (mathematics) , mechanics , rheology , physics , geology , shear viscosity , paleontology , tectonics , telecommunications , computer science
Abstract The deformation of nylon drops in polyethylene, with and without an interfacial agent, in an extensional flow has been studied. The presence of an interfacial agent reduces the size of the dispersed phase, and the deformation of the drop is reduced. An analysis is given, which accurately predicts the deformation for all values of the capillary number considered. The predicted and observed shapes are, however, only in agreement at low values of capillary number. Possible causes for this discrepancy are discussed. © 1996 John Wiley & Sons, Inc.