Numerical Simulation of Unsteady Turbulent and Laminar Mixed Convection in Rectangular Enclosure with Hot upper Moving Wall by Finite Volume Method

Mixed convection is a fundamentally significant heat transfer mechanism that occurs in selection industrial and technological applications. In this study, we first modeled the laminar mixed convection inside rectangular enclosure with moving wall and Aspect Ratio=10 and then the results were compared with other investigators. After showing verity of results, we continue our investigation with turbulent flow using RNG G k -e and standard k -e . The results show that the turbulence intensity depends on the position. For example, in vertical walls and boundary layer, the flow is laminar and flow in center of enclosure is turbulent.

کلیدواژه ها:

Mixed Convection ، Richardson Number ، Rectangular Enclosure ، Turbulent Flow ، Finite Volume Method