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Article: Corrugated interfaces in multiphase core-annular flow

TitleCorrugated interfaces in multiphase core-annular flow
Authors
KeywordsCore-annular flow
Corrugated interfaces
Double emulsions
Interfacial tensions
Micro-fluidic devices
Issue Date2010
PublisherAmerican Institute of Physics. The Journal's web site is located at http://ojps.aip.org/phf
Citation
Physics Of Fluids, 2010, v. 22 n. 8 How to Cite?
AbstractMicrofluidic devices can be used to produce highly controlled and monodisperse double or multiple emulsions. The presence of inner drops inside a jet of the middle phase introduces deformations in the jet, which leads to breakup into monodisperse double emulsions. However, the ability to generate double emulsions can be compromised when the interfacial tension between the middle and outer phases is low, leading to flow with high capillary and Weber numbers. In this case, the interface between the fluids is initially deformed by the inner drops but the jet does not break into drops. Instead, the jet becomes highly corrugated, which prevents formation of controlled double emulsions. We show using numerical calculations that the corrugations are caused by the inner drops perturbing the interface and the perturbations are then advected by the flow into complex shapes. © 2010 American Institute of Physics.
Persistent Identifierhttp://hdl.handle.net/10722/139365
ISSN
2015 Impact Factor: 2.017
2015 SCImago Journal Rankings: 1.036
ISI Accession Number ID
Funding AgencyGrant Number
NSFDMR-1006546
Harvard MRSECDMR-0820484
BASF Ludwigshafen in Germany
Ministerio de Educacion y CienciaDPI2008-06624-C03-03
Funding Information:

This work was supported by the NSF (Contract No. DMR-1006546) and the Harvard MRSEC (Contract No. DMR-0820484). H.C.S. and D.A.W. were supported in part by BASF Ludwigshafen in Germany. A.F-N. thanks Ministerio de Educacion y Ciencia (Contract No. DPI2008-06624-C03-03) and University of Almeria. We thank Andy Utada and Daeyeon Lee for helpful discussions and Kruss GmbH for the spinning drop tensiometer measurements.

References

 

DC FieldValueLanguage
dc.contributor.authorShum, HCen_HK
dc.contributor.authorSauret, Aen_HK
dc.contributor.authorFernandezNieves, Aen_HK
dc.contributor.authorStone, HAen_HK
dc.contributor.authorWeitz, DAen_HK
dc.date.accessioned2011-09-23T05:48:54Z-
dc.date.available2011-09-23T05:48:54Z-
dc.date.issued2010en_HK
dc.identifier.citationPhysics Of Fluids, 2010, v. 22 n. 8en_HK
dc.identifier.issn1070-6631en_HK
dc.identifier.urihttp://hdl.handle.net/10722/139365-
dc.description.abstractMicrofluidic devices can be used to produce highly controlled and monodisperse double or multiple emulsions. The presence of inner drops inside a jet of the middle phase introduces deformations in the jet, which leads to breakup into monodisperse double emulsions. However, the ability to generate double emulsions can be compromised when the interfacial tension between the middle and outer phases is low, leading to flow with high capillary and Weber numbers. In this case, the interface between the fluids is initially deformed by the inner drops but the jet does not break into drops. Instead, the jet becomes highly corrugated, which prevents formation of controlled double emulsions. We show using numerical calculations that the corrugations are caused by the inner drops perturbing the interface and the perturbations are then advected by the flow into complex shapes. © 2010 American Institute of Physics.en_HK
dc.languageengen_US
dc.publisherAmerican Institute of Physics. The Journal's web site is located at http://ojps.aip.org/phfen_HK
dc.relation.ispartofPhysics of Fluidsen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsPhysics of Fluids. Copyright © American Institute of Physics.-
dc.rightsAfter publication: Copyright 2010 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Physics of Fluids, 2010, v. 22 n. 8, article no. 082002 and may be found at http://pof.aip.org/resource/1/phfle6/v22/i8/p082002_s1-
dc.subjectCore-annular flow-
dc.subjectCorrugated interfaces-
dc.subjectDouble emulsions-
dc.subjectInterfacial tensions-
dc.subjectMicro-fluidic devices-
dc.titleCorrugated interfaces in multiphase core-annular flowen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1070-6631&volume=22&issue=8, article no. 082002 &spage=082002&epage=1&date=2010&atitle=Corrugated+interfaces+in+multiphase+core-annular+flowen_US
dc.identifier.emailShum, HC:ashum@hku.hken_HK
dc.identifier.authorityShum, HC=rp01439en_HK
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1063/1.3480561en_HK
dc.identifier.scopuseid_2-s2.0-77956646047en_HK
dc.identifier.hkuros193592en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77956646047&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume22en_HK
dc.identifier.issue8en_HK
dc.identifier.spage082002-1-
dc.identifier.epage082002-5-
dc.identifier.isiWOS:000281905900007-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridShum, HC=23976513800en_HK
dc.identifier.scopusauthoridSauret, A=36519721000en_HK
dc.identifier.scopusauthoridFernandezNieves, A=6701323625en_HK
dc.identifier.scopusauthoridStone, HA=7202564376en_HK
dc.identifier.scopusauthoridWeitz, DA=7006798731en_HK

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