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dc.contributor.authorChe, Zhizhao
dc.contributor.authorWong, Teck Neng
dc.contributor.authorNam-Trung, Nguyen
dc.contributor.authorYang, Chun
dc.date.accessioned2017-06-19T04:44:42Z
dc.date.available2017-06-19T04:44:42Z
dc.date.issued2015
dc.identifier.issn0017-9310
dc.identifier.doi10.1016/j.ijheatmasstransfer.2015.03.030
dc.identifier.urihttp://hdl.handle.net/10072/69179
dc.description.abstractConvective heat transfer in droplet-based microchannel heat sinks can be enhanced by the recirculating vortices due to the presence of interfaces. In rectangular microchannels, the three dimensional structures of the vortices and the 'gutters' (i.e., the space between the curved droplet interface and the corner of the microchannel) can significantly affect the heat transfer process. Numerical simulations of the heat transfer process are performed to study the three dimensional features in droplet-based microchannel heat sinks. The finite volume method and the level set method are employed to simulate the flow dynamics, the evolution of the interface, and the heat transfer. The results show that the 'gutters' can hinder the heat transfer process because of its parallel flow, whereas the recirculating flow in droplets and in slug regions between successive droplets can enhance the heat transfer by advecting hot fluid towards the center of the droplets/slugs and advecting fresh fluid towards the wall of the channel. The effects of the length of droplets, the aspect ratio of the channel cross sections, and the Peclet number are analyzed.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.languageEnglish
dc.language.isoeng
dc.publisherPergamon Press
dc.publisher.placeUnited Kingdom
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom455
dc.relation.ispartofpageto464
dc.relation.ispartofjournalInternational Journal of Heat and Mass Transfer
dc.relation.ispartofvolume86
dc.rights.retentionY
dc.subject.fieldofresearchMathematical sciences
dc.subject.fieldofresearchPhysical sciences
dc.subject.fieldofresearchEngineering
dc.subject.fieldofresearchMicroelectromechanical systems (MEMS)
dc.subject.fieldofresearchcode49
dc.subject.fieldofresearchcode51
dc.subject.fieldofresearchcode40
dc.subject.fieldofresearchcode401705
dc.titleThree dimensional features of convective heat transfer in droplet-based microchannel heat sinks
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
dcterms.licensehttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.description.versionAccepted Manuscript (AM)
gro.rights.copyright© 2015 Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (http://creativecommons.org/licenses/by-nc-nd/4.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, providing that the work is properly cited.
gro.hasfulltextFull Text
gro.griffith.authorNguyen, Nam-Trung


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