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Impact of partial slip condition on mixed convection of nanofluid within lid-driven wavy cavity and solid inner body

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Propulsion and Power Research 2022年第4期11卷 544-564页

作者： Ammar I.Alsabery Mohammad H.Yazdi Ali S.Abosinnee Ishak Hashim Evgeny Solomin Refrigeration&Air-conditioning Technical Engineering Department College of Technical EngineeringThe Islamic UniversityNajafIraq New Materials Technology and Processing Research Center Department of Mechanical EngineeringNeyshabur BranchIslamic Azad UniversityNeyshaburIran Altoosi University College NajafIraq Department of Mathematical Sciences Faculty of Science&TechnologyUniversiti Kebangsaan Malaysia43600Bangi SelangorMalaysia Department of Electric Power Generation Stations Network and Supply SystemsInstitute of Engineering and TechnologySouth Ural State University76Lenin AvenueChelyabinsk454080Russian Federation

In thermofluid systems,the lid-driven square chamber plays an imperative role in analyzing thermodynamics’first and second laws in limited volume cases executed by sheer effects with a prominent role in many industrial applications including electronic cooling,heat exchangers,microfluidic components,solar collectors,and renewable ***,nanofluids as working fluids have demonstrated potential for heat transfer enhancement systems,however there are some concerns about irreversibility problems in the *** to this problem and in line with the applications of partial slip on fluid flow modification and irreversibilities,the present study considers laminar mixed convection and entropy generation analysis of aluminum oxide nanofluid inside a lid-driven wavy cavity having an internal conductive solid body in the presence of a partial slip on the upper surface,which to the best of our knowledge,has not been investigated so *** fundamental equations of the current work with the appropriate boundary conditions are first made dimensionless and then solved numerically using the Galerkin weighted residual *** main parameters of the flow and heat transfer,entropy generation,and Bejan number are presented and explained in *** outcomes indicate that the partial slip is more effective when friction irreversibilities govern the *** the presence of slip condition,the flow circulation changes the trend in the middle of the cavity around the solid block leading to a decrease in the isentropic lines at the dense sections with almost 30%less than the case of no-slip *** is concluded that partial slip shows different trends on the local Nusselt number interface along the wavy wall improving the average Nusselt number where high friction irreversibilities dominate.

关键词： Entropy generation Mixed convection lid-driven wavy cavity Nanofluid Inner cylinder Partial slip

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