Effects of wall heating on laminar mixed convection in a cylindrical enclosure with a rotating end wall

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dc.authorid0000-0003-3421-2020en_US
dc.contributor.authorTuran, Osman
dc.contributor.authorYigit, Sahin
dc.contributor.authorChakraborty, Nilanjan
dc.date.accessioned2021-03-20T20:13:05Z
dc.date.available2021-03-20T20:13:05Z
dc.date.issued2018
dc.departmentBTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, Makine Mühendisliği Bölümüen_US
dc.description.abstractSteady-state laminar mixed convection in a cylindrical enclosure has been numerically analysed for different values of Reynolds, Richardson and Prandtl numbers given by 500 <= Re <= 3000, 0 <= Ri <= 1 and 10 <= Pr <= 500 respectively. The aspect ratio (i.e. height: radius = AR = H/R) of the cylindrical container is considered to be unity (ie. AR = H/R = 1). The bottom and top covers of the cylindrical enclosure are kept at different temperatures (T-C < T-H), while the cylindrical surface is taken to be adiabatic. The simulations for rotating top and bottom cover configurations yield the same numerical values of the mean Nusselt number (Nu) over bar when the thermal boundary conditions are kept unaltered. For this reason, only rotating top hot wall (ie. C1 configuration) and rotating top cold wall (ie. C2 configuration) have been considered for this analysis. The mean Nusselt number (Nu) over bar has been found to assume higher values in the C2 configuration than in the Cl configuration. Moreover, it has been found that the variation of the mean Nusselt number with Richardson number in the C2 configuration is qualitatively different from that in the C1 configuration. The simulation data has been used to propose a correlation for (Nu) over bar for the range of Re, Ri and Pr considered here for both Cl and C2 configurations. In addition to this, a regime diagram has been proposed for the C2 configuration in order to demarcate different flow regimes.en_US
dc.description.sponsorshipNewton Research Collaboration Programme [NRCP1516/4/67]en_US
dc.description.sponsorshipThis study was supported by Newton Research Collaboration Programme (NRCP1516/4/67) and is hereby gratefully acknowledged.en_US
dc.identifier.doi10.1016/j.ijthermalsci.2018.05.005en_US
dc.identifier.endpage93en_US
dc.identifier.issn1290-0729
dc.identifier.issn1778-4166
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage80en_US
dc.identifier.urihttp://doi.org/10.1016/j.ijthermalsci.2018.05.005
dc.identifier.urihttps://hdl.handle.net/20.500.12885/787
dc.identifier.volume131en_US
dc.identifier.wosWOS:000436912900009en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorTuran, Osman
dc.language.isoenen_US
dc.publisherElsevier France-Editions Scientifiques Medicales Elsevieren_US
dc.relation.ispartofInternational Journal Of Thermal Sciencesen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectMixed convectionen_US
dc.subjectRotating end wallen_US
dc.subjectReynolds numberen_US
dc.subjectPrandtl numberen_US
dc.subjectRichardson numberen_US
dc.titleEffects of wall heating on laminar mixed convection in a cylindrical enclosure with a rotating end wallen_US
dc.typeArticleen_US

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