IMPACT OF TWISTED DUCTS WITH DIFFERENT TWIST RATIOS ON HEAT TRANSFER AND FLUID CHARACTERISTICS OF NiO/WATER NANOFLUID FLOW UNDER MAGNETIC FIELD EFFECT

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dc.authoridTekir, Mutlu/0000-0003-2289-7034
dc.authoridGurdal, Mehmet/0000-0003-2209-3394
dc.authoridARSLAN, Kamil/0000-0002-1216-6812
dc.contributor.authorPazarlioglu, Hayati Kadir
dc.contributor.authorGurdal, Mehmet
dc.contributor.authorTekir, Mutlu
dc.contributor.authorArslan, Kamil
dc.contributor.authorGedik, Engin
dc.date.accessioned2024-09-29T16:12:21Z
dc.date.available2024-09-29T16:12:21Z
dc.date.issued2022
dc.departmentKarabük Üniversitesien_US
dc.description.abstractLaminar forced convection of NiO/water nanofluid in a twisted square duct has been investigated numerically under the effect of an external magnetic field (B = 0 G, 450 G, and 550 G) in the Reynolds number range of 500 <= Re <= 2000. Four different twist ratios (D/L = 0.0, 1.0, 1.5, and 2.0) of the square duct have also been examined. The nanoparticle volume fractions (NPVF) of NiO/water nanofluid have been selected between 0.6 vol.% and 2.5 vol.%. The effects of the magnitude of the magnetic field (MF), twist ratio, Reynolds number, and nanoparticle volume fraction on thermohydraulic performance have been examined by using the homogeneous model in the numerical analyses. The results of the numerical computations have been reported with average Nusselt number Nu, pressure loss, average Darcy friction factor f, and performance evaluation criterion (PEC). The highest heat transfer increment by 20% has been achieved at D/L = 2.0 with the highest nanoparticle volume fraction, namely, 2.5 vol.% NiO/water nanofluid, compared to the case of distilled water (DW) flowing in a plain duct (PD). In addition, it was determined that the magnetic field effect increases the convective heat transfer in the twisted duct with D/L = 2.0 up to 35% compared to the cases in the absence of a magnetic field at D/L = 2.0. Among all cases, the highest PEC has been obtained with 2.5 vol.% NiO/water nanofluid flowing in the twisted duct with the twist ratio D/L = 2.0.en_US
dc.identifier.endpage72en_US
dc.identifier.issn1064-2285
dc.identifier.issn2162-6561
dc.identifier.issue4en_US
dc.identifier.startpage55en_US
dc.identifier.urihttps://hdl.handle.net/20.500.14619/8714
dc.identifier.volume53en_US
dc.identifier.wosWOS:000752474500001en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.publisherBegell House Incen_US
dc.relation.ispartofHeat Transfer Researchen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCFDen_US
dc.subjectconstant magnetic fielden_US
dc.subjectconvective heat transferen_US
dc.subjectlaminar flowen_US
dc.subjectnanofluiden_US
dc.subjecttwisted ducten_US
dc.titleIMPACT OF TWISTED DUCTS WITH DIFFERENT TWIST RATIOS ON HEAT TRANSFER AND FLUID CHARACTERISTICS OF NiO/WATER NANOFLUID FLOW UNDER MAGNETIC FIELD EFFECTen_US
dc.typeArticleen_US

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