Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/66478
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dc.titleBubble growth in a viscous liquid in a simple shear flow
dc.contributor.authorFavelukis, M.
dc.contributor.authorTadmor, Z.
dc.contributor.authorSemiat, R.
dc.date.accessioned2014-06-17T08:30:50Z
dc.date.available2014-06-17T08:30:50Z
dc.date.issued1999-04
dc.identifier.citationFavelukis, M.,Tadmor, Z.,Semiat, R. (1999-04). Bubble growth in a viscous liquid in a simple shear flow. AIChE Journal 45 (4) : 691-695. ScholarBank@NUS Repository.
dc.identifier.issn00011541
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/66478
dc.description.abstractThe nucleation and growth of a bubble in a Newtonian liquid in simple shear and creeping flow were studied experimentally in a Couette apparatus operating under vacuum. A low molecular weight polyisobutylene was chosen as a typical high-viscosity Newtonian liquid. The volatile solvent in our experiments was simulated by air, and the formed or growing bubbles were photographed under shear. The experimental foaming results indicate that vacuum (at a level of supersaturation conditions) is not sufficient to boil a viscous solution, even in the presence of bubbles (nucleation sites), as shear also has to be applied. Furthermore, there is probably a critical shear rate (or stress) at which boiling appears. Bubble growth experimental results indicate that the growth rate of a slender bubble increases as the shear rate increases and as the pressure decreases. The experimental results agree well with theoretical models developed by Lee and Biesenberger (for bubble nucleation) and by the authors (for bubble growth).
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentCHEMICAL & ENVIRONMENTAL ENGINEERING
dc.description.sourcetitleAIChE Journal
dc.description.volume45
dc.description.issue4
dc.description.page691-695
dc.description.codenAICEA
dc.identifier.isiutNOT_IN_WOS
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