articleInternational Journal of Numerical Methods for Heat &amp Fluid FlowJan 30, 2026Closed access

Magneto-thermal convective heat transfer and sensitivity analysis of Bingham–Papanastasiou fluid around an isothermal cylinder in trapezoidal enclosure

SUSami Ul HaqMBM. Bilal AshrafNBNidhal BecheikhISImen SafraAMAiedh Mrisi Alharthi

Zhejiang Energy Research Institute · COMSATS University Islamabad · +4 more institutions

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Abstract

Purpose The purpose of this study is to investigate the interaction of a Bingham–Papanastasiou fluid with a heated circular cylinder inside an enclosure under magneto-thermal convection. The objectives are to analyze hydrodynamic phenomena, including entropy generation because of heat transfer and viscous dissipation, and to perform a relative sensitivity analysis to identify the most influential physical parameters affecting the average heat transfer rate at the heated cylinder. Design/methodology/approach The Navier–Stokes equations for Bingham–Papanastasiou fluid, coupled with the energy equation and viscous dissipation, are solved numerically using the finite element method in COMSOL Multiphysics 6.2.…

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Topics & keywords

Topics
Keywords
  • Nusselt number
  • Heat transfer
  • Rayleigh number
  • Enclosure
  • Natural convection
  • Film temperature
  • Multiphysics
  • Heat transfer coefficient
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