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dc.contributor.authorPERSOONS, TIMen
dc.contributor.authorMURRAY, DARINAen
dc.contributor.authorBYRNE, GERARDen
dc.date.accessioned2012-01-23T16:41:20Z
dc.date.available2012-01-23T16:41:20Z
dc.date.issued2011en
dc.date.submitted2011en
dc.identifier.citationPersoons, T., O'Gorman, I.M., Donoghue, D.B., Byrne, G. and Murray, D.B., Natural Convection heat transfer and fluid dynamics for a pair of vertically aligned isothermal horizontal cylinders., International Journal of Heat and Mass Transfer, 54, 2011, 5163 - 5172en
dc.identifier.otherYen
dc.identifier.urihttp://hdl.handle.net/2262/61810
dc.descriptionPUBLISHEDen
dc.description.abstractThis paper discusses the close interaction between local fluid dynamics and natural convection heat transfer from a pair of isothermally heated horizontal cylinders submerged in water. The presence of a second heated cylinder induces heat transfer enhancements of up to 10%, and strong fluctuations in local heat transfer rate. Therefore specific attention is focused on how the local heat transfer characteristics of the upper cylinder are affected by buoyancy induced fluid flow from the lower cylinder. The paper investigates a range of Rayleigh number between 1.8 ? 106 and 5.5 ? 106, and a vertical cylinder spacing between 2D and 4D. Simultaneous local heat flux measurements and flow velocity measurements using particle image velocimetry reveal oscillatory behaviour of the thermal plume, depending on operating conditions. A joint temporal analysis of the data has provided new insights into the governing mechanisms, which enables further optimisation of the heat transfer performance.en
dc.description.sponsorshipDr. Tim Persoons is a Marie Curie research fellow of the Irish Research Council for Science, Engineering and Technology (IRCSET). Ian M. O?Gorman is a postgraduate research scholar of the Irish Research Council for Science, Engineering and Technology (IRCSET). The authors acknowledge the work of Antoine Van Noorte and Pauline Vancraenenbroek, and the financial support of Science Foundation Ireland (SFI09-RFP-ENM2151).en
dc.format.extent5163en
dc.format.extent5172en
dc.language.isoenen
dc.relation.ispartofseriesInternational Journal of Heat and Mass Transferen
dc.relation.ispartofseries54en
dc.rightsYen
dc.subjectFluid Dynamicsen
dc.subjectTubular heat exchangersen
dc.titleNatural Convection heat transfer and fluid dynamics for a pair of vertically aligned isothermal horizontal cylinders.en
dc.typeJournal Articleen
dc.contributor.sponsorScience Foundation Ireland (SFI)en
dc.type.supercollectionscholarly_publicationsen
dc.type.supercollectionrefereed_publicationsen
dc.identifier.peoplefinderurlhttp://people.tcd.ie/dmurrayen
dc.identifier.peoplefinderurlhttp://people.tcd.ie/persoonten
dc.identifier.peoplefinderurlhttp://people.tcd.ie/gerbyrneen
dc.identifier.rssinternalid77132en
dc.contributor.sponsorGrantNumber09-RFP-ENM2151en
dc.subject.TCDThemeSmart & Sustainable Planeten
dc.subject.TCDThemeTelecommunicationsen
dc.identifier.rssurihttp://dx.doi.org/10.1016/j.ijheatmasstransfer.2011.08.033en
dc.identifier.orcid_id0000-0002-7424-5751en


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