Mixed convective thermal transport in a lid-driven square enclosure with square obstacle

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dc.authoridAbdullaev, Sherzod/0000-0002-2454-6708
dc.contributor.authorKhan, Noor Zeb
dc.contributor.authorMahmood, Rashid
dc.contributor.authorBilal, Sardar
dc.contributor.authorAkgul, Ali
dc.contributor.authorAbdullaev, Sherzod
dc.contributor.authorMahmoud, Emad E.
dc.contributor.authorYahia, Ibrahim S.
dc.date.accessioned2024-12-24T19:25:13Z
dc.date.available2024-12-24T19:25:13Z
dc.date.issued2023
dc.departmentSiirt Üniversitesi
dc.description.abstractThe prime motive of this disquisition is to scrutinize simultaneous aspects of external forcing mechanism and internal volumetric forces on non-Newtonian liquid filled in square enclo-sure. Inertially driven upper lid is assumed by providing constant magnitude of slip velocity whereas thermal equilibrium is disturbed by assuming uniform temperature at lower boundary and by keep-ing rest of walls as cold. To enhance thermal diffusion transport with in the flow domain cold as well as adiabatic temperature situation is provided. In view of velocity constraints all the extremities at no-slip except the upper wall which is moving with ULid. Formulation is attained in dimensional form initially and afterwards variables are used to convert constructed differential system into dimensionless representation. A numerical solution of leading formulation is sought through Galer-kin finite element discretization. Momentum and temperature equations are interpolated by quad-ratic polynomials whereas pressure distribution is approximated by linear interpolating function. Domain discretized version is evaluated in view of triangular and rectangular elements. Newton's scheme is employed to resolve the non-linearly discretized system and a matrix factorization based non-linear solver renowned as PARADISO is used. Validation of results is ascertained by forming agreement with existing studies. In addition, grid independence test is also performed to show credibility of performed computations. Stream lines and isothermal contours patterns are portrayed to evaluate variation in flow distributions. Kinetic energy and local heat flux for uniform and non-uniform heating situations are also divulged in graphical and tabular formats. Increase in Reynold number produces decrease in kinetic energy of fluid. Enhancement in Grashof number causes enrichment of thermal buoyancy forces due to which Nusselt number uplifts. Clock wise rotations increase against upsurge in magnitude of Reynold number which is evidenced form stream lines. Squeezing of secondary vortex against Prandtl number arises due to dominance of viscous forces.(c) 2022 THE AUTHORS. Published by Elsevier BV on behalf of Faculty of Engineering, Alexandria University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/ licenses/by-nc-nd/4.0/).
dc.description.sponsorshipDeanship of Scientific Research at King Khalid University [R.G.P. 2/233/43]; Taif University, Taif, Saudi Arabia [TURSP-2020/20]
dc.description.sponsorshipThe authors express their appreciation to the Deanship of Scientific Research at King Khalid University for funding this work through research groups program under grant number R.G.P. 2/233/43. Emad E. Mahmoud acknowledges the Taif University Researchers Supporting Project number TURSP-2020/20, Taif University, Taif, Saudi Arabia.
dc.identifier.doi10.1016/j.aej.2022.08.031
dc.identifier.endpage998
dc.identifier.issn1110-0168
dc.identifier.issn2090-2670
dc.identifier.scopus2-s2.0-85137731500
dc.identifier.scopusqualityQ1
dc.identifier.startpage981
dc.identifier.urihttps://doi.org/10.1016/j.aej.2022.08.031
dc.identifier.urihttps://hdl.handle.net/20.500.12604/6321
dc.identifier.volume64
dc.identifier.wosWOS:000921129300001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofAlexandria Engineering Journal
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241222
dc.subjectMixed convection
dc.subjectPower law fluid
dc.subjectSquare cavity
dc.subjectSquare cylinder (Adiabatic and Cold)
dc.subjectNon-uniform and uniform heating
dc.titleMixed convective thermal transport in a lid-driven square enclosure with square obstacle
dc.typeArticle

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