Role of magnetic field and surface corrugation on natural convection in a nanofluid filled 3D trapezoidal cavity

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dc.contributor.authorSelimefendigil F.
dc.contributor.authorÖztop H.F.
dc.date.accessioned2024-07-22T08:09:38Z
dc.date.available2024-07-22T08:09:38Z
dc.date.issued2018
dc.description.abstractIn this study, the role of magnetic field and surface corrugation on the natural convective transfer characteristics in a three dimensional, CuO-water nanofluid filled trapezoidal cavity was numerically investigated with finite element method. Influence of various pertinent parameters such as Rayleigh number (between 104 and 106), Hartmann number (between 0 and 40), number (between 0 and 16) and height (between 0 and 0.5H) of triangular wave form and solid nanoparticle volume fraction (between 0 and 0.04) on the fluid flow and thermal characteristics were analyzed. It was observed that when corrugation height and number of corrugation waves enhance, local and average heat transfer reduce. The use of CuO nanoparticles is advantageous when heat transfer is effective and for the configurations without magnetic field. 26.86% increase in the average Nusselt number is obtained when magnetic field is imposed at Hartmann number of 30 whereas 40.72% of increment in the average heat transfer is attained in the absence of magnetic field when 4% of CuO nanoparticles are added to the water. A mathematical model based on proper orthogonal decomposition and polynomial interpolation among modal coefficients is developed that could be used to reconstruct the whole flow and thermal field and perform thermal predictions for the 3D corrugated cavity. © 2018 Elsevier Ltd
dc.identifier.DOI-ID10.1016/j.icheatmasstransfer.2018.05.006
dc.identifier.issn07351933
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/14893
dc.language.isoEnglish
dc.publisherElsevier Ltd
dc.subjectCopper oxides
dc.subjectFinite element method
dc.subjectFlow of fluids
dc.subjectHeat transfer
dc.subjectMagnetic fields
dc.subjectNanomagnetics
dc.subjectNanoparticles
dc.subjectPrincipal component analysis
dc.subjectThree dimensional computer graphics
dc.subject3D cavity
dc.subjectAverage heat transfers
dc.subjectCorrugation
dc.subjectNanofluids
dc.subjectPolynomial interpolation
dc.subjectProper orthogonal decompositions
dc.subjectSurface corrugations
dc.subjectThermal characteristics
dc.subjectNanofluidics
dc.titleRole of magnetic field and surface corrugation on natural convection in a nanofluid filled 3D trapezoidal cavity
dc.typeArticle

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