Numerical simulation of forced convection turbulent in a channel with transverse baffles

This article presents the numerical modeling of dynamic and thermal behavior of turbulent forced convection in horizontal channel within a provided of baffles,represented by the obstacles for the cooling of the hot walls. the governing equations,based on the k-e model have been used to describe the turbulence phenomena and solved by the finite volume method. the velocity and the pressure terms of momentum equations are solved by the simple algorithm. the effect of spacing between the baffles on the heat transfer enhancement was studied in detail. the results obtained show that: (i) the spacing between the baffles have direct effects on the heat transfer by forced convection,(ii) the above results suggest that a significant increase in heat transfer in a heat exchanger tube can be obtained by introducing two transverse baffle by a spacing d2= 0,101m (very little). © 2017,university of mohammed premier oujda morocco.