Height Partition Effect on Combined Mixed Convection and Surface Radiation in a Vented Rectangular Cavity

The present paper reports numerical results of mixed convection and surface radiation within a horizontal ventilated cavity heated from below and provided with an adiabatic thin partition on the heated surface. air, a radiatively transparent medium, is considered to be the cooling fluid. the effect of the governing parameters, which are the reynolds number, 200 ≤ re ≤ 5000, the relative height of the baffle, 0 ≤ hb ≤ 0.75, and the emissivity of the walls, 0 ≤ ɛ ≤ 1, on the fluid flow and heat transfer characteristics is studied in detail. the maximum and mean temperatures, the ratio, qe/ql, of the heat quantities leaving the cavity through the exit, qe, and through the left vertical cold side, ql, are also presented versus the above controlling parameters.