TURBULENT NATURAL CONVECTION INSIDE AN INCLINED SQUARE ENCLOSURE WITH BAFFLES

The turbulent natural convection inside an inclined air filled square enclosure having two conducting solid baffles has been numerically investigated. Fully elliptic Navier-Stokes and energy equations based on a finite volume method were solved by using a SIMPLE algorithm. The effect of turbulence was modeled using k-ε turbulence model. The problem was investigated for different parameters such as the angle of inclination, relative baffles height, the distance between baffles and Rayleigh number. The enclosure was differentially heated and the conducting baffles were placed on the bottom wall. The obtained results show that the rate of heat transfer is increased as the angle of inclination increases for the studied Rayleigh numbers. Also the results show that the number of resulting vortices and their elongation were significantly affected with angle of inclination and the relative baffles height.