Maximum heat transfer density rate enhancement from cylinders rotating in natural convection
dc.contributor.advisor | ||
dc.contributor.author | Page, L.G. (Logan Garrick) | |
dc.contributor.author | Bello-Ochende, Tunde | |
dc.contributor.author | Meyer, Josua P. | |
dc.contributor.email | tunde.bello-ochende@up.ac.za | en_US |
dc.date.accessioned | 2012-06-06T06:14:07Z | |
dc.date.available | 2012-06-06T06:14:07Z | |
dc.date.issued | 2011-12 | |
dc.description.abstract | In 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.librarian | ai2012 | en |
dc.description.sponsorship | The National Research Foundation (NRF-DST) | en_US |
dc.description.uri | http://www.elsevier.com/locate/ichmt | en_US |
dc.identifier.citation | L.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.2011.08.010 | en_US |
dc.identifier.issn | 0735-1933 (print) | |
dc.identifier.issn | 1879-0178 (online) | |
dc.identifier.other | 10.1016/j.icheatmasstransfer.2011.08.010 | |
dc.identifier.uri | http://hdl.handle.net/2263/19107 | |
dc.language.iso | en | en_US |
dc.publisher | Elsevier | en_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.2011.08.010 | en_US |
dc.subject | Natural convection | en_US |
dc.subject | Rotating cylinders | en_US |
dc.subject | Heat transfer density rate | en_US |
dc.subject.lcsh | Heat -- Transmission -- Measurement | en |
dc.subject.lcsh | Cylinders -- Thermodynamics | en |
dc.title | Maximum heat transfer density rate enhancement from cylinders rotating in natural convection | en_US |
dc.type | Postprint Article | en_US |