Effects of nanoparticle shape on slot-jet impingement cooling of a corrugated surface with nanofluids

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dc.contributor.authorSelimefendigil F.
dc.contributor.authorÖztop H.F.
dc.date.accessioned2024-07-22T08:10:35Z
dc.date.available2024-07-22T08:10:35Z
dc.date.issued2017
dc.description.abstractNumerical study of jet impingement cooling of a corrugated surface with water-SiO2 nanofluid of different nanoparticle shapes was performed. The bottom wall is corrugated and kept at constant surface temperature, while the jet emerges from a rectangular slot with cold uniform temperature. The finite volume method is utilized to solve the governing equations. The effects of Reynolds number (between 100 and 500), corrugation amplitude (between 0 and 0.3), corrugation frequency (between 0 and 20), nanoparticle volume fraction (between 0 and 0.04), and nanoparticle shapes (spherical, blade, brick, and cylindrical) on the fluid flow and heat transfer characteristics were studied. Stagnation point and average Nusselt number enhance with Reynolds number and solid particle volume fraction for both flat and corrugated surface configurations. An optimal value for the corrugation amplitude and frequency was found to maximize the average heat transfer at the highest value of Reynolds number. Among various nanoparticle shapes, cylindrical ones perform the best heat transfer characteristics in terms of stagnation and average Nusselt number values. At the highest solid volume concentration of the nanoparticles, heat transfer values are higher for a corrugated surface when compared to a flat surface case. © 2017 by ASME.
dc.identifier.DOI-ID10.1115/1.4035811
dc.identifier.issn19485085
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/15288
dc.language.isoEnglish
dc.publisherAmerican Society of Mechanical Engineers (ASME)
dc.subjectAtmospheric temperature
dc.subjectFinite volume method
dc.subjectFlow of fluids
dc.subjectHeat transfer
dc.subjectJets
dc.subjectNanofluidics
dc.subjectNanoparticles
dc.subjectNusselt number
dc.subjectReynolds number
dc.subjectVolume fraction
dc.subjectAverage heat transfers
dc.subjectConstant surface temperatures
dc.subjectCorrugation amplitudes
dc.subjectCorrugation frequency
dc.subjectFluid flow and heat transfers
dc.subjectHeat transfer characteristics
dc.subjectJet impingement cooling
dc.subjectNanoparticle volume fractions
dc.subjectFighter aircraft
dc.titleEffects of nanoparticle shape on slot-jet impingement cooling of a corrugated surface with nanofluids
dc.typeArticle

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