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Conference Paper: Droplet formation at the non-equilibrium water/water (w/w) interface

TitleDroplet formation at the non-equilibrium water/water (w/w) interface
Authors
Issue Date2017
PublisherAmerican Physical Society. The Journal's web site is located at http://www.aps.org/meetings/baps/
Citation
70th Annual Meeting of the American Physical Society (APS) Division of Fluid Dynamics, Denver, Colorado, USA, 19–21 November 2017. In Bulletin of the American Physical Society, 2017, v. 62 n. 14, Abstract: KP1.00062 How to Cite?
AbstractThe interfacial instability at liquid-liquid interfaces has been intensively studied in recent years due to their important role in nature and technology. Among them, two classic instabilities are Rayleigh-Taylor (RT) and double diffusive (DD) instabilities, which are practically relevant to many industrial processes, such as geologic CO2 sequestration. Most experimental and theoretical works have focused on RT or DD instability in binary systems. However, the study of such instability in complex systems, such as non-equilibrium ternary systems that involves mass-transfer-induced phase separation, has received less attention. Here, by using a ternary system known as the aqueous two-phase system (ATPS), we investigate experimentally the behavior of non-equilibrium water/water (w/w) interfaces in a vertically orientated Hele-Shaw cell. We observe that an array of fingers emerge at the w/w interface, and then break into droplets. We explore the instability using different concentrations of two aqueous phases. Our experimental findings are expected to inspire the mass production of all-aqueous emulsions in a simple setup.
DescriptionSession KP1: Poster Session - Abstract ID: Abstract: KP1.00062 (BAPS.2017.DFD.KP1.62)
Persistent Identifierhttp://hdl.handle.net/10722/260729
ISSN

 

DC FieldValueLanguage
dc.contributor.authorChao, Y-
dc.contributor.authorMak, SY-
dc.contributor.authorKong, T-
dc.contributor.authorDing, Z-
dc.contributor.authorShum, HC-
dc.date.accessioned2018-09-14T08:46:26Z-
dc.date.available2018-09-14T08:46:26Z-
dc.date.issued2017-
dc.identifier.citation70th Annual Meeting of the American Physical Society (APS) Division of Fluid Dynamics, Denver, Colorado, USA, 19–21 November 2017. In Bulletin of the American Physical Society, 2017, v. 62 n. 14, Abstract: KP1.00062-
dc.identifier.issn0003-0503-
dc.identifier.urihttp://hdl.handle.net/10722/260729-
dc.descriptionSession KP1: Poster Session - Abstract ID: Abstract: KP1.00062 (BAPS.2017.DFD.KP1.62)-
dc.description.abstractThe interfacial instability at liquid-liquid interfaces has been intensively studied in recent years due to their important role in nature and technology. Among them, two classic instabilities are Rayleigh-Taylor (RT) and double diffusive (DD) instabilities, which are practically relevant to many industrial processes, such as geologic CO2 sequestration. Most experimental and theoretical works have focused on RT or DD instability in binary systems. However, the study of such instability in complex systems, such as non-equilibrium ternary systems that involves mass-transfer-induced phase separation, has received less attention. Here, by using a ternary system known as the aqueous two-phase system (ATPS), we investigate experimentally the behavior of non-equilibrium water/water (w/w) interfaces in a vertically orientated Hele-Shaw cell. We observe that an array of fingers emerge at the w/w interface, and then break into droplets. We explore the instability using different concentrations of two aqueous phases. Our experimental findings are expected to inspire the mass production of all-aqueous emulsions in a simple setup.-
dc.languageeng-
dc.publisherAmerican Physical Society. The Journal's web site is located at http://www.aps.org/meetings/baps/-
dc.relation.ispartofAmerican Physical Society Bulletin-
dc.titleDroplet formation at the non-equilibrium water/water (w/w) interface-
dc.typeConference_Paper-
dc.identifier.emailShum, HC: ashum@hku.hk-
dc.identifier.authorityShum, HC=rp01439-
dc.identifier.hkuros290351-
dc.identifier.volume62-
dc.identifier.issue14-
dc.publisher.placeUnited States-

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