Investigation of 3D Mixed Convection in Channel Flow Using Unmapped Tet/Hybrid Cells

3D mixed convection heat transfer in a channel flow is studied in a rectangular cross sectional duct with constant heat flux at the floor and insulated side and top walls. The main idea of this study is to investigate the influence of metal cubes at the floor to enhance and reduce the heat transfer and the static pressure drop through the channel, respectively. So there has been defined an evaluation performance to consider the both heat transfer and static pressure drop variations. In the present work, fins with different cross sections, various flow impact angles, different longitudinal and width spacing and different entrance length have been probed. Among all cases, cube with 75 deg flow impact angle and the fin with triangular cross section have the maximum performance evaluation.