A numerical study of the natural convection of Al2O3-EG nanofluid in a square enclosure and impacts and a comparison of various viscosity and thermal conductivity models

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dc.contributor.authorÇakmak, Neşe Keklikcioğlu
dc.contributor.authorDurmazuçar, Hasan Hüseyin
dc.contributor.authorYapıcı, Kerim
dc.date.accessioned2024-10-26T17:42:29Z
dc.date.available2024-10-26T17:42:29Z
dc.date.issued2021
dc.departmentSivas Cumhuriyet Üniversitesi
dc.description.abstractIn the current study, heat transfer enhancement in an enclosure was investigated by utilizing Al2O3-EG nanofluid. In the numerical solutions, the solid-liquid mixture equations were applied for theenclosure that composed alumina-ethylene glycol nanofluid, in terms of the two-dimensionalbuoyancy-driven convection. Various viscosity and thermal conductivity models were utilized forthe purpose of assessing heat transfer improvement. The purpose of this study was to reveal theimpacts caused by uncertainties in the viscosity and thermal conductivity of the nanofluid onlaminar natural convection heat transfer occurring in a square enclosure. The temperatures of theright and left vertical walls of the enclosure were kept constant as Tc and Th, respectively, whereasthe thermal insulation of the other walls was performed. The discretization of the governingequations was performed by utilizing the finite volume method and the SIMPLE algorithm.Calculations were made for the Rayleigh number (103-106) and the volume fraction of aluminananoparticles, ?= 0-5%. In this study, many parameters affecting heat transfer by naturalconvection were investigated in the enclosure containing Al2O3-EG nanofluid, and it was foundthat nanofluid viscosity was the most efficient factor for heat transfer rate.
dc.identifier.doi10.35860/iarej.852562
dc.identifier.endpage230
dc.identifier.issn2618-575X
dc.identifier.issue2
dc.identifier.startpage218
dc.identifier.trdizinid450761
dc.identifier.urihttps://doi.org/10.35860/iarej.852562
dc.identifier.urihttps://search.trdizin.gov.tr/tr/yayin/detay/450761
dc.identifier.urihttps://hdl.handle.net/20.500.12418/24659
dc.identifier.volume5
dc.indekslendigikaynakTR-Dizin
dc.language.isoen
dc.relation.ispartofInternational Advanced Researches and Engineering Journal
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectAl2O3
dc.subjectNanofluid
dc.subjectThermal conductivity
dc.subjectViscosity
dc.subjectFinite volume method
dc.subjectFourth-order linear scheme
dc.subjectLid-driven cavity
dc.subjectNatural convection
dc.titleA numerical study of the natural convection of Al2O3-EG nanofluid in a square enclosure and impacts and a comparison of various viscosity and thermal conductivity models
dc.typeArticle

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