Numerical investigation on turbulent flow and heat transfer characteristics of ferro-nanofluid flowing in dimpled tube under magnetic field effect

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dc.authoridGurdal, Mehmet/0000-0003-2209-3394
dc.authoridTekir, Mutlu/0000-0003-2289-7034
dc.authoridARSLAN, Kamil/0000-0002-1216-6812
dc.contributor.authorGurdal, Mehmet
dc.contributor.authorPazarlioglu, Hayati Kadir
dc.contributor.authorTekir, Mutlu
dc.contributor.authorArslan, Kamil
dc.contributor.authorGedik, Engin
dc.date.accessioned2024-09-29T15:54:59Z
dc.date.available2024-09-29T15:54:59Z
dc.date.issued2022
dc.departmentKarabük Üniversitesien_US
dc.description.abstractFor the aim of increasing the heat transfer enhancement, a hybrid method in which active and passive heat recovery techniques have been used together. The usage of nanofluid, MHD and dimpled fins tube have not been utilized together so far. Regarding this issue, this study is the first numerical study to determine effect of usage of three effects together comprehensively. In this study, thermo-hydraulic performance of Fe3O4/H2O nanofluid (ferro-nanofluid) flow inside dimpled tube under magnetic field effect has been examined numerically. The main purpose of the study is to obtain numerical data for turbulent flow in the spherical dimpled tubes providing some aid to design a highly efficient thermal energy storage devices. Dimple geometry with nondimensional pitch ratio (P/d = 3.75, 7.50 and 11.25), Hartmann number (Ha = 75, 150, 225) and nanoparticle volume fraction (phi = 0.5, 1.0 and 2.5 vol%) are the parameters investigated in this study. The numerical analyses have been carried out Reynolds number ranging from 10,000 to 50,000 at a constant heat flux at 20 kW/m2. The simulations have been built up by Realizable k-epsilon turbulence model and single-phase approach. Also, MagnetoHydroDynamic (MHD) module has also been activated for defining magnetic field effect. The results showed that Nusselt number increases with increasing Reynolds number and decreasing pitch ratio. The dimple geometry type of P/d = 7.50 has been determined as the most efficient dimple geometry type. In the case of highest magnetic field intensity, the highest Nusselt number increment (72.48%) has been obtained for phi = 2.5 vol% compared to the base fluid of distilled water using as the working fluid for smooth tube. The highest PEC value was also obtained as 1.126 for the case of P/d = 7.5, phi = 2.5 vol% and Ha = 75. In addition, the effect of magnetic field intensity on velocity and temperature distributions has been presented with contour graphs.en_US
dc.description.sponsorshipKarabuk University [KBuBAP-FDK-2020-2333]en_US
dc.description.sponsorshipThe authors would like to thank Karabuk University under the KBuBAP-FDK-2020-2333 scientific research project.en_US
dc.identifier.doi10.1016/j.applthermaleng.2021.117655
dc.identifier.issn1359-4311
dc.identifier.issn1873-5606
dc.identifier.scopus2-s2.0-85116881246en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.applthermaleng.2021.117655
dc.identifier.urihttps://hdl.handle.net/20.500.14619/4404
dc.identifier.volume200en_US
dc.identifier.wosWOS:000712099300002en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherPergamon-Elsevier Science Ltden_US
dc.relation.ispartofApplied Thermal Engineeringen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectFerro-nanofluiden_US
dc.subjectDimpled tubeen_US
dc.subjectHeat transfer enhancementen_US
dc.subjectMagnetic fielden_US
dc.subjectCFDen_US
dc.titleNumerical investigation on turbulent flow and heat transfer characteristics of ferro-nanofluid flowing in dimpled tube under magnetic field effecten_US
dc.typeArticleen_US

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