NATURAL CONVECTION FLOW AND HEAT TRANSFER IN AN L-SHAPED CAVITY PARTIALLY FILLED WITH POROUS MEDIUM: NUMERICAL ANALYSIS

In an L-shaped cavity partially filled with a porous material, natural convection flow and heat transfer are quantitatively investigated. The effect of numerous significant parameters on isotherms, streamlines, and heat transport characteristics is investigated within the enclosure. The Rayleigh number, Darcy number, effective heat conductivity of the porous medium, aspect ratio, and thickness of the porous layer are all investigated. The governing equations are solved using the Galerkin technique with weighted residuals. The findings of this study demonstrate that an L-shaped cavity exhibits fascinating properties. As a result, as the aspect ratio of the L-shaped cavity increases, the average Nusselt number decreases. Furthermore, raising the Rayleigh number, as well as the effective thermal conductivity of porous media, improved the average Nusselt number. In the case of natural convection, the thickness of the porous layer is shown to be inconsequential.