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

• Main Authors: A. Bahlaoui, A. RAJI, M. Hasnaoui, C. Ouardi, M. Naïmi, T. Makayssi
• Format: Article
• Language: English
• Published: Isfahan University of Technology 2011-01-01
• Series: Journal of Applied Fluid Mechanics
• Subjects: Mixed convection; surface radiation; numerical study; ventilated cavity; adiabatic partition
• Online Access: http://jafmonline.net/JournalArchive/download?file_ID=15275&issue_ID=203

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 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.