Analysis of mixed convection of nanofluid in a 3D lid-driven trapezoidal cavity with flexible side surfaces and inner cylinder

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dc.contributor.authorSelimefendigil F.
dc.contributor.authorÖztop H.F.
dc.contributor.authorChamkha A.J.
dc.date.accessioned2024-07-22T08:10:22Z
dc.date.available2024-07-22T08:10:22Z
dc.date.issued2017
dc.description.abstractNumerical study of mixed convection in a lid-driven 3D flexible walled trapezoidal cavity with nanofluids was performed by using Galerkin weighted residual finite element method. Effects of various pertinent parameters such as Richardson number (between 0.05 and 50), elastic modulus of the side surfaces (between 1000 and 105), side wall inclination angle (between 0° and 20°) and solid particle volume fraction (between 0 and 0.04) on the fluid flow and heat transfer characteristics in a 3D lid-driven-trapezoidal cavity were numerically examined. It was observed that these characteristics are influenced when the pertinent parameters change. Flexible side surface can be used as control element for heat transfer rate. Increment and reduction in the space which are provided by the flexible side walls result in heat transfer enhancement and deterioration for side wall inclination angle of 0° and 10°. Average Nusselt number enhances by about 9.80% when the value of the elastic modulus is increased from 1000 to 105 for side wall inclination angles of θ = 0°. Adding nanoparticles to the base fluid results in linear increment of heat transfer and at the highest volume fraction, 25.30% of heat transfer enhancement is obtained. A polynomial type correlation for the average Nusselt number along the hot wall was proposed and it has a fourth order polynomial dependence upon the Richardson number and first order dependence upon the solid particle volume fraction. © 2017 Elsevier Ltd
dc.identifier.DOI-ID10.1016/j.icheatmasstransfer.2017.06.015
dc.identifier.issn07351933
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/15199
dc.language.isoEnglish
dc.publisherElsevier Ltd
dc.subjectElastic moduli
dc.subjectFinite element method
dc.subjectFlow of fluids
dc.subjectHeat transfer
dc.subjectHeat transfer coefficients
dc.subjectMixed convection
dc.subjectNumerical methods
dc.subjectNusselt number
dc.subjectVolume fraction
dc.subjectFirst-order dependence
dc.subjectFlexible wall
dc.subjectFluid flow and heat transfers
dc.subjectFourth order polynomial
dc.subjectHeat Transfer enhancement
dc.subjectInclination angles
dc.subjectNanofluids
dc.subjectTrapezoidal cavity
dc.subjectNanofluidics
dc.titleAnalysis of mixed convection of nanofluid in a 3D lid-driven trapezoidal cavity with flexible side surfaces and inner cylinder
dc.typeArticle

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