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Entropy generation analysis and natural convection in a nanofluid-filled square cavity with a concentric solid insert and different temperature distributions

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dc.citedby27
dc.contributor.authorAlsabery A.I.en_US
dc.contributor.authorIshak M.S.en_US
dc.contributor.authorChamkha A.J.en_US
dc.contributor.authorHashim I.en_US
dc.contributor.authorid56705372300en_US
dc.contributor.authorid57208024651en_US
dc.contributor.authorid35568909100en_US
dc.contributor.authorid10043682500en_US
dc.date.accessioned2023-05-29T06:52:12Z
dc.date.available2023-05-29T06:52:12Z
dc.date.issued2018
dc.description.abstractThe problem of entropy generation analysis and natural convection in a nanofluid square cavity with a concentric solid insert and different temperature distributions is studied numerically by the finite difference method. An isothermal heater is placed on the bottom wall while isothermal cold sources are distributed along the top and side walls of the square cavity. The remainder of these walls are kept adiabatic. Water-based nanofluids with Al2O3 nanoparticles are chosen for the investigation. The governing dimensionless parameters of this study are the nanoparticles volume fraction (0 ? ? ? 0.09), Rayleigh number (103 ? Ra ? 106), thermal conductivity ratio (0.44 ? Kr ? 23.8) and length of the inner solid (0 ? D ? 0.7). Comparisons with previously experimental and numerical published works verify a very good agreement with the proposed numerical method. Numerical results are presented graphically in the form of streamlines, isotherms and local entropy generation as well as the local and average Nusselt numbers. The obtained results indicate that the thermal conductivity ratio and the inner solid size are excellent control parameters for an optimization of heat transfer and Bejan number within the fully heated and partially cooled square cavity. � 2018 by the authors.en_US
dc.description.natureFinalen_US
dc.identifier.ArtNo336
dc.identifier.doi10.3390/e20050336
dc.identifier.issue5
dc.identifier.scopus2-s2.0-85047441978
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85047441978&doi=10.3390%2fe20050336&partnerID=40&md5=cca0f8e22bacbcfb2b88e875d63f126a
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/23827
dc.identifier.volume20
dc.publisherMDPI AGen_US
dc.relation.ispartofAll Open Access, Gold, Green
dc.sourceScopus
dc.sourcetitleEntropy
dc.titleEntropy generation analysis and natural convection in a nanofluid-filled square cavity with a concentric solid insert and different temperature distributionsen_US
dc.typeArticleen_US
dspace.entity.typePublication
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