formal interview with simple question regarding my education. and my project. The Primary objective is to study the flow and temperature field occurring inside the enclosure. This mixed convection heat transfer arises in many practical applications like cooling of electronic equipments, thermal environmental control spaces, nuclear reactors, solar central receivers, air conditioned rooms. The problem has been formulated mathematically and then the equations are discreted using the FVM, and STAR CD software package is used to solve the problem numerically