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This research examines the influence of opening length (OL) and slip velocity (Knudsen number, Kn) on the thermal performance of partially open square cavities filled with nanofluids. Utilizing COMSOL Multiphysics 6.0 for finite element analysis, the study systematically evaluates how variations in OL and Kn affect natural convection mechanisms and heat transfer rates. The study incorporates the influence of slip boundary conditions alongside the thermophysical characteristics of nanofluids, emphasizing their considerable effects on fluid flow and the enhancement of heat transfer. Results demonstrate varying Nusselt numbers across different OL and Kn values, emphasizing the critical role of slip velocity in optimizing convection processes within these cavities.

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Numerical Modeling of Natural Convection in a Partially Open Square Cavity Filled with Al2O3-Water Nanofluid

  • 会议论文

  • 发表日期：

    2026年

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  • Gloria Biswal,
  • Ganesh Sahadeo Meshram

摘要

This research examines the influence of opening length (OL) and slip velocity (Knudsen number, Kn) on the thermal performance of partially open square cavities filled with nanofluids. Utilizing COMSOL Multiphysics 6.0 for finite element analysis, the study systematically evaluates how variations in OL and Kn affect natural convection mechanisms and heat transfer rates. The study incorporates the influence of slip boundary conditions alongside the thermophysical characteristics of nanofluids, emphasizing their considerable effects on fluid flow and the enhancement of heat transfer. Results demonstrate varying Nusselt numbers across different OL and Kn values, emphasizing the critical role of slip velocity in optimizing convection processes within these cavities.