NATURAL CONVECTION OF ETHYLENE GLYCOL AND WATER MIXTURE BASED AL2O3 NANOFLUIDS BETWEEN VERTICAL CONCENTRIC CYLINDERS

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dc.authoridOgut, Elif Buyuk/0000-0002-5647-4040
dc.authoridOgut, Elif Buyuk/0000-0002-5647-4040
dc.authorwosidOgut, Elif Buyuk/ABA-7597-2021
dc.authorwosidOgut, Elif Buyuk/F-5113-2018
dc.contributor.authorKahveci, Kamil
dc.contributor.authorOgut, Elif Buyuk
dc.date.accessioned2024-06-12T11:09:01Z
dc.date.available2024-06-12T11:09:01Z
dc.date.issued2020
dc.departmentTrakya Üniversitesien_US
dc.description.abstractNatural convection of ethylene glycol (EG) and water mixture based AL(2)O(3) nanofluids between vertical concentric circular cylinders heated from the inner wall and cooled from the outer wall was investigated numerically in this study. The computations were carried for the Rayleigh numbers of 10(4), 10(5), 10(6), and 10(7), nanoparticle volume fractions of 0%, 4% and 8%, ethylene glycol (EG) to water volume ratios of 0:100 %, 50:50%, and 100:0%, the radius ratios of 2, 3 and 4, and aspect ratios of 0.5, 1, and 2. The Brinkman model was used to predict the viscosity and the Yu and Choi model for the thermal conductivity of nanofluid. The results show that the average Nusselt number shows a considerable increase with an increase in the Rayleigh number and radius ratio. The results also show that the average Nusselt number shows a medium increase with increasing nanoparticle volume fraction and a slight increase with increasing volume ratios of EG to water. Furthermore, the results show that the average Nusselt number experiences first an increase then a decrease with an increase in the aspect ratio except for the low Ra numbers. Finally, the average Nusselt number experiences a slight increase with the aspect ratio for the low Rayleigh numbers.en_US
dc.identifier.doi10.47480/isibted.817005
dc.identifier.endpage250en_US
dc.identifier.issn1300-3615
dc.identifier.issue2en_US
dc.identifier.scopus2-s2.0-85096770123en_US
dc.identifier.scopusqualityQ4en_US
dc.identifier.startpage237en_US
dc.identifier.trdizinid419510en_US
dc.identifier.urihttps://doi.org/10.47480/isibted.817005
dc.identifier.urihttps://search.trdizin.gov.tr/yayin/detay/419510
dc.identifier.urihttps://hdl.handle.net/20.500.14551/22655
dc.identifier.volume40en_US
dc.identifier.wosWOS:000590450200004en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakTR-Dizinen_US
dc.language.isoenen_US
dc.publisherTurkish Soc Thermal Sciences Technologyen_US
dc.relation.ispartofIsi Bilimi Ve Teknigi Dergisi-Journal Of Thermal Science And Technologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectNatural Convectionen_US
dc.subjectConcentric Cylindersen_US
dc.subjectNanofluiden_US
dc.subjectAl2O3en_US
dc.subjectEthylene Glycolen_US
dc.subjectWateren_US
dc.subjectRayleigh Numberen_US
dc.subjectNusselt Numberen_US
dc.subjectHeat-Transfer Enhancementen_US
dc.subjectNumerical-Simulationen_US
dc.subjectFlowen_US
dc.subjectSuspensionsen_US
dc.titleNATURAL CONVECTION OF ETHYLENE GLYCOL AND WATER MIXTURE BASED AL2O3 NANOFLUIDS BETWEEN VERTICAL CONCENTRIC CYLINDERSen_US
dc.typeArticleen_US

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