عنوان مقاله [English]
نویسندگان [English]چکیده [English]
Natural convection between vertical parallel plates occurs frequently in applications such as solar collectors and cooling of electronic instruments. The problem is a two dimensional developing buoyant flow. In this work, the two dimensional conservation equations are solved numerically for constant wall temperature and constant wall heat flux. The results for the local Nusselt number at the duct exit are compared with the experimental data and the agreement is reasonable.