Characteristics of jet droplet produced by bubble bursting on the free liquid surface

Show simple item record Zhang, J en Chen, JJJ en Zhou, N en 2011-11-20T01:16:07Z en 2012-01-22 en
dc.identifier.citation Chemical Engineering Science 68(1):151-156 2012 en
dc.identifier.issn 0009-2509 en
dc.identifier.uri en
dc.description.abstract Droplet formation that follows gas bubblebursting at a freeliquidsurface, being known as “entrainment”, is a common phenomenon in many fields. Though there were a couple of investigations focusing on entrainment, specific characteristics of jet drops produced by bubblebursting on freesurface are still unknown in the current stage. Efforts were performed to try to determine the expression of critical bubble size, above which the bubble does not produce any drops by bursting on liquidsurface. Dimensionless analyses show that in air–liquid systems, ReFr−0.5, ReWe−0.5 and WeFr−0.5Re−1 can be readily correlated to Mo. Error analysis demonstrated the following expression: Dcr=100.1914σL0.5517ρL−0.4830g−0.5170μL−0.0688 can give the most accurate prediction of Dcr as a universal expression. Further, for correlating the number of droplets to bubble diameter in air–water and air–iron system, Dcr was used as the length scale to normalize the bubblediameter. Through curve fitting, a universal expression has been obtained to predict the number of dropletsproduced by bubblebursting on freeliquidsurfacein any air–liquid system: Ndr=7.9 exp(−DB/(0.338Dcr))−0.41. Comparison shows that this expression is able to give more accurate prediction than the previous empirical expressions. The most significant innovation is that it is a universal model that can be used in various gas–liquid systems. en
dc.publisher Elsevier Ltd. en
dc.relation.ispartofseries Chemical Engineering Science en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. Details obtained from en
dc.rights.uri en
dc.title Characteristics of jet droplet produced by bubble bursting on the free liquid surface en
dc.type Journal Article en
dc.identifier.doi 10.1016/j.ces.2011.09.019 en
pubs.issue 1 en
pubs.begin-page 151 en
pubs.volume 68 en
dc.rights.holder Copyright: Elsevier Ltd. en
pubs.declined 2017-09-03T20:04:39.834+1200 en
pubs.declined 2017-09-17T17:15:49.521+1200 en
pubs.declined 2017-11-05T17:06:34.905+1300 en
pubs.declined 2017-11-26T18:43:10.312+1300 en
pubs.declined 2017-12-10T17:37:32.0+1300 en
pubs.end-page 156 en
dc.rights.accessrights en
pubs.subtype Article en
pubs.elements-id 235184 en
pubs.record-created-at-source-date 2011-11-20 en

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