Heat and Flow Control in Cavity with Cold Circular Cylinder Placed in Non-Newtonian Fluid by Performing Finite Element Simulations

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dc.authoridAwrejcewicz, Jan/0000-0003-0387-921X
dc.authoridRiaz, Muhammad Bilal/0000-0001-5153-297X
dc.authorid, Sardar/0000-0002-7803-9218
dc.authoridShah, Imtiaz/0000-0002-5038-6656
dc.contributor.authorBilal, Sardar
dc.contributor.authorKhan, Noor Zeb
dc.contributor.authorShah, Imtiaz Ali
dc.contributor.authorAwrejcewicz, Jan
dc.contributor.authorAkgul, Ali
dc.contributor.authorRiaz, Muhammad Bilal
dc.date.accessioned2024-12-24T19:33:33Z
dc.date.available2024-12-24T19:33:33Z
dc.date.issued2022
dc.departmentSiirt Üniversitesi
dc.description.abstractA study on strategies regarding advancement in heat transfer characteristics in two-dimensional closed domains by placing cold cylinders is conducted. This effort is undertaken due to the fact that active and passive control in heat transmission is connected with provision of temperature differences at different locations of enclosures. Based on the experiments, researchers have concluded that placement of cold cylinder in non-uniformly distributed heat in a cavity is the most effective technique to enrich heat transfer rate, along with reducing the the waste of extra heat generation in processes such as polymer and aero dynamical extrusion, glass cooling, refrigeration, heating and cooling systems. Thus, the prime goal of this work is to outline heat and flow characteristics of non-linear fluid occupied in a square enclosure with adjustment of the cold cylinder. Heat transfer attributes are incorporated by accounting buoyancy forces and forming coupling of molecular diffusion of fluid within the flow domain. Formulation of the problem in dimensionless form is attained by encapsulating the aspects of natural convection in view of principal partial differential equations. Parametric study for governing expressions is computed numerically with the finite element method based on COMSOL Multiphysics version 5.6. Quadric interpolating functions are used to obtain information about velocity and temperature on nodes in elements. Hybrid meshing is manifested for discretization of the domain into rectangular and triangular elements. For the optimized variation in flow structures, prospective parameters are varied from 0.5 <= n <= 1.5, 5 <= Pr <= 35 and 10(2) <= Ra <= 10(6). The achieved results are projected graphically through streamlines, isotherms, and local and average Nusselt numbers. Tabular data for kinetic energy and wall heat flux are also calculated. It is inferred through the analysis that, with uplift in the Rayleigh number ( Ra) elevation in the magnitude of kinetic energy and convective heat transfer arises, whereas the reverse pattern is depicted versus the power-law index ( n)
dc.identifier.doi10.3390/coatings12010016
dc.identifier.issn2079-6412
dc.identifier.issue1
dc.identifier.scopus2-s2.0-85121762907
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.3390/coatings12010016
dc.identifier.urihttps://hdl.handle.net/20.500.12604/8198
dc.identifier.volume12
dc.identifier.wosWOS:000936355200001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherMdpi
dc.relation.ispartofCoatings
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241222
dc.subjectheat transfer
dc.subjectpower-law liquid
dc.subjectcold obstacle
dc.subjectfinite element procedure
dc.titleHeat and Flow Control in Cavity with Cold Circular Cylinder Placed in Non-Newtonian Fluid by Performing Finite Element Simulations
dc.typeArticle

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