Natural convection in porous media-filled triangular enclosure with a conducting thin fin on the hot vertical wall

摘要

The flow and heat transfer in a triangular enclosure filled with a fluid-saturated porous medium with a conducting thin fin on the hot vertical wall has been numerically analysed. The Darcy law model was used to write the governing equations and they were solved using a finite-difference method. Computations were carried out to analyse the effects of the rayleigh number, length and location of fin; thermal conductivity ratio. Results were presented for the local and mean Nusselt numbers, streamlines; isotherms. It was found that attaching the conductive thin fin affects the heat transfer, flow fields; temperature distributions. It was also found that heat transfer was reduced when the thin fin was attached onto the wall.