Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.jnnfm.2004.09.006
Title: Deformation and breakup of a non-Newtonian slender drop in an extensional flow
Authors: Favelukis, M. 
Lavrenteva, O.M.
Nir, A.
Keywords: Bubble
Deformation
Drop
Extensional flow
Fluid mechanics
Non-Newtonian fluids
Issue Date: 10-Jan-2005
Source: Favelukis, M., Lavrenteva, O.M., Nir, A. (2005-01-10). Deformation and breakup of a non-Newtonian slender drop in an extensional flow. Journal of Non-Newtonian Fluid Mechanics 125 (1) : 49-59. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jnnfm.2004.09.006
Abstract: The deformation and breakup of a non-Newtonian slender drop in a Newtonian liquid in a simple extensional and creeping flow has been theoretically studied. The power-law was chosen for the fluid inside the drop, and the deformation of the drop is described by a single ordinary differential equation, which was numerically solved. Asymptotic analytical expressions for the local radius were derived near the center and close to the end of the drop. The results for the shape of the drop and the breakup criterion are presented as a function of the capillary number, the viscosity ratio and type of non-Newtonian fluid inside the drop. An approximate analytical solution is also suggested which is in good agreement with the numerical results. © 2004 Elsevier B.V. All rights reserved.
Source Title: Journal of Non-Newtonian Fluid Mechanics
URI: http://scholarbank.nus.edu.sg/handle/10635/63695
ISSN: 03770257
DOI: 10.1016/j.jnnfm.2004.09.006
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