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Title: Unsteady mass transfer around spheroidal drops in potential flow
Authors: Favelukis, M. 
Ly, C.H.
Keywords: Bubble
Fluid mechanics
Mass transfer
Mathematical modeling
Issue Date: Dec-2005
Citation: Favelukis, M., Ly, C.H. (2005-12). Unsteady mass transfer around spheroidal drops in potential flow. Chemical Engineering Science 60 (24) : 7011-7021. ScholarBank@NUS Repository.
Abstract: Unsteady mass transfer in the continuous phase around spheroidal drops in potential flow and at high Peclet numbers has been theoretically studied. Analytical solutions for the concentration profile, the molar flux, the concentration boundary layer thickness, and the time to reach steady state are presented. The solution to the problem was obtained by the useful equations derived by Favelukis and Mudunuri for axisymmetric drops of revolution, with the only requirements being the shape of the drop and the tangential velocity at the surface of the drop. The solution suggests that, as the eccentricity increases, the total quantity of material transferred to or from the drop decreases (for prolate spheroids) and increases (for oblate spheroids). It was also determined that when the dimensionless time is greater than 2, then steady state is in practice obtained, with prolate drops attain steady-state conditions faster than oblate drops. © 2005 Elsevier Ltd. All rights reserved.
Source Title: Chemical Engineering Science
ISSN: 00092509
DOI: 10.1016/j.ces.2005.06.022
Appears in Collections:Staff Publications

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