Effects of fin on mixed convection heat transfer in a vented square cavity: A numerical study

Abstract

Numerical investigation of mixed convective in a vented square cavity with fin. The horizontal walls are adiabatic, while the left and right walls are hot (Th) and cold (Tc) temperatures, respectively. The fluid inlet to the cavity from the lower left open area(Win), and exits from the upper right open area (Wout). In this study, a finite element scheme is employed. The analysis is done for specific Prandtl number (Pr=7), Reynolds number (50≤Re≤200), fin length (0.2≤Lf≤0.6), Richardson number (0.1≤Ri≤1), and the location of the fin (0.2≤h≤0.6). The finding indicates that the Nuavg increases when high the location of the fin increases at the maximum height of this fin location is estimated to be 17% due to an increase in the fluid flow area on the hot wall caused by rising convective. The highest heat transfer occurs when the fin length equals 0.6 at the location (h=0.2).