Abstract
The purpose of this study is enhancement of natural convective heat transfer from the vertical plate using some baffles and periodic oscillation. Particularly the effects of baffle height and baffle width are investigated by numerical simulation in this paper. The oscillated velocity is almost half flow velocity of vertical flat plate with no oscillation to reduce the effect of forced convection. The results show that spatially and temporally averaged Nusselt number became larger than that of stationary flat plate but smaller than that of oscillatory flat plate. This results show that baffle is not good application for enhancement of heat transfer.