Heat transfer enhancement of heated blocks in the 2D rectangular channel with wavy bypass flow chamber

Heat transfer enhancement of a row of heated blocks mounted on the bottom plate of the 2D rectangular channel with wavy bypass flow chamber is investigated numerically in this study. The laminar and turbulent simulations for 2D flow systems are considered. Efforts are devoted to investigate the influences of the arrangement of the wavy type bypass flow chamber on the flow structures, temperature distributions and the heat transfer characteristics of this system. Comparing the results of the cases with or without bypass flow chamber as Pr = 0.7, Re = 500 and 10000, the maximum augmentation of overall average Nusselt number can be up to 101% and 93% at Re = 500 and 10000. In addition, the maximum hot spot temperature of the system can be reduced about 37% and 57% for laminar and turbulent flow respectively. It reveals that the construction of wavy type bypass chamber can greatly enhance the cooling performance in this system.