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dc.contributor.authorForrest, Eric C.
dc.contributor.authorBuongiorno, Jacopo
dc.contributor.authorHu, Lin-Wen
dc.contributor.authorMcKrell, Thomas J
dc.date.accessioned2016-11-22T14:49:05Z
dc.date.available2016-11-22T14:49:05Z
dc.date.issued2015-10
dc.date.submitted2015-09
dc.identifier.issn0022-1481
dc.identifier.issn1528-8943
dc.identifier.urihttp://hdl.handle.net/1721.1/105395
dc.description.abstractExperimental results are presented for single-phase heat transfer in a narrow rectangular minichannel heated on one side. The aspect ratio and gap thickness of the test channel were 29:1 and 1.96 mm, respectively. Friction pressure drop and Nusselt numbers are reported for the transition and fully turbulent flow regimes, with Prandtl numbers ranging from 2.2 to 5.4. Turbulent friction pressure drop for the high aspect ratio channel is well-correlated by the Blasius solution when a modified Reynolds number, based upon a laminar equivalent diameter, is utilized. The critical Reynolds number for the channel falls between 3500 and 4000, with Nusselt numbers in the transition regime being reasonably predicted by Gnielinski's correlation. The dependence of the heat transfer coefficient on the Prandtl number is larger than that predicted by circular tube correlations, and is likely a result of the asymmetric heating. The problem of asymmetric heating condition is approached theoretically using a boundary layer analysis with a two-region wall layer model, similar to that originally proposed by Prandtl. The analysis clarifies the influence of asymmetric heating on the Nusselt number and correctly predicts the experimentally observed trend with Prandtl number. A semi-analytic correlation is derived from the analysis that accounts for the effect of aspect ratio and asymmetric heating, and is shown to predict the experimental results of this study with a mean absolute error (MAE) of less than 5% for 4000 < Re < 70,000.en_US
dc.description.sponsorshipUnited States. National Nuclear Security Administration. Global Threat Reduction Initiative (Argonne National Laboratory. Contract 25-30101-0004 A)en_US
dc.description.sponsorshipUnited States. National Nuclear Security Administration. Office of Nonproliferation and International Security (Nuclear Nonproliferation Safeguards Graduate Fellowship)en_US
dc.description.sponsorshipUnited States. National Nuclear Security Administration. (Sandia National Laboratories. Contract DE-AC04-94AL85000)en_US
dc.language.isoen_US
dc.publisherASME Internationalen_US
dc.relation.isversionofhttp://dx.doi.org/10.1115/1.4031646en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceASMEen_US
dc.titleConvective Heat Transfer in a High Aspect Ratio Minichannel Heated on One Sideen_US
dc.typeArticleen_US
dc.identifier.citationForrest, Eric C. et al. “Convective Heat Transfer in a High Aspect Ratio Minichannel Heated on One Side.” Journal of Heat Transfer 138.2 (2015): 21704. © 2016 by ASMEen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Nuclear Science and Engineeringen_US
dc.contributor.departmentMIT Nuclear Reactor Laboratoryen_US
dc.contributor.mitauthorHu, Lin-Wen
dc.contributor.mitauthorMcKrell, Thomas J
dc.relation.journalJournal of Heat Transferen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsForrest, Eric C.; Hu, Lin-Wen; Buongiorno, Jacopo; McKrell, Thomas J.en_US
dspace.embargo.termsNen_US
mit.licensePUBLISHER_POLICYen_US


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