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Title: Terminal velocity and mobile surface species in rising microbubbles
Authors: Manor, O.
Chan, D.Y.C. 
Issue Date: 18-Aug-2009
Citation: Manor, O., Chan, D.Y.C. (2009-08-18). Terminal velocity and mobile surface species in rising microbubbles. Langmuir 25 (16) : 8899-8902. ScholarBank@NUS Repository.
Abstract: The terminal velocity of rising microbubbles is a sensitive function of the bubble size and the surface concentration of mobile insoluble surfactants at the gas/liquid interface due to the Marangoni effect. With a model that allows for surface convection and diffusion, we delineate the regimes when the terminal velocity varies between the fully mobile (Hadamard-Rybczynski) and the fully immobile (Stokes) behavior at low Reynolds numbers. Results are presented in a universal form to facilitate conversion from bubble rise terminal velocity to trace amounts of surface contaminants. © 2009 American Chemical Society.
Source Title: Langmuir
ISSN: 07437463
DOI: 10.1021/la901958t
Appears in Collections:Staff Publications

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