A study of jet impingement cooling enhancement by concave and convex heat sink shape modifications

The rising demand for efficient cooling technologies is a strong driver of extensive research in this area. This trend particularly turbines and microprocessors technology. Presented study focused on the jet impingement concept, which used various configurations many years. potential heat sink shape modification not yet fully explored. Available literature suggests that average Nusselt number can be improved by more than 10% adding conical stagnation region. refers to axisymmetric case where cold-water impinges surface heated aluminium. results are based 2D thermal-FSI (Fluid-Solid Interaction) model, was validated against experiment. objective presented analysis determine correlation between effectiveness (Nusselt number) chosen examples concave convex shapes located