Maximum heat transfer density rate enhancement from cylinders rotating in natural convection

dc.contributor.advisor
dc.contributor.authorPage, L.G. (Logan Garrick)
dc.contributor.authorBello-Ochende, Tunde
dc.contributor.authorMeyer, Josua P.
dc.contributor.emailtunde.bello-ochende@up.ac.zaen_US
dc.date.accessioned2012-06-06T06:14:07Z
dc.date.available2012-06-06T06:14:07Z
dc.date.issued2011-12
dc.description.abstractIn this paper we investigate the thermal behaviour of an assembly of consecutive cylinders in a counterrotating configuration cooled by natural convection with the objective of maximizing the heat transfer density rate (heat transfer rate per unit volume). A numerical model is used to solve the governing equations that describe the temperature and flow fields. The spacing between the consecutive cylinders is optimised for each flow regime (Rayleigh number) and cylinder rotation speed. It was found that the optimized spacing decreases as the Rayleigh number increases and the heat transfer density rate increases, for the optimized structure, as the cylinder rotation speed is increased. Results further show that there is an increase in the heat transfer density rate of the rotating cylinders over stationary cylinders.en_US
dc.description.librarianai2012en
dc.description.sponsorshipThe National Research Foundation (NRF-DST)en_US
dc.description.urihttp://www.elsevier.com/locate/ichmten_US
dc.identifier.citationL.G. Page, T. Bello-Ochende & J.P. Meyer, Maximum heat transfer density rate enhancement from cylinders rotating in natural convection, International Communications in Heat and Mass Transfer, vol. 38, no. 10, pp. 1354-1359 (2011), doi: 10.1016/j.icheatmasstransfer.2011.08.010en_US
dc.identifier.issn0735-1933 (print)
dc.identifier.issn1879-0178 (online)
dc.identifier.other10.1016/j.icheatmasstransfer.2011.08.010
dc.identifier.urihttp://hdl.handle.net/2263/19107
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.rights© 2011 Elsevier Ltd. All rights reserved. Notice : this is the author’s version of a work that was accepted for publication inInternational Communications in Heat and Mass Transfer. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in International Communications in Heat and Mass Transfer, vol. 38, issue 10, December 2011, doi: 10.1016/j.icheatmasstransfer.2011.08.010en_US
dc.subjectNatural convectionen_US
dc.subjectRotating cylindersen_US
dc.subjectHeat transfer density rateen_US
dc.subject.lcshHeat -- Transmission -- Measurementen
dc.subject.lcshCylinders -- Thermodynamicsen
dc.titleMaximum heat transfer density rate enhancement from cylinders rotating in natural convectionen_US
dc.typePostprint Articleen_US

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