Numerical Investigation of the Porous Medium Blocks Geometry Effects on the Convection Heat Transfer and Pressure Drop in the Nano-Fluids flows in the Channels

In this study, our main objective is to evaluate heat convection and pressure drop simultaneously to obtain optimum properties of Nano-fluid and porous media contribution for high cooling efficiency. In fact, the main contribution of this study is to simulate Nano-fluid flow effects on cooling process of heating resources located inside channels that are completely surrounded by parallel walls. To do this, porous materials are located on predefined blocks in the channel to increase heat transfer and then determine the effect of porous materials on quality of heat transfer. One of the most significant goal of this study is to use various geometries of porous blocks on this process. For various porous media geometry, the rate of heat transfers along with pressure drop have been evaluated to obtain best geometry. To do this, the fluent software is employed to study the effect of different parameters including Re number, Nu number and pressure reduction on optimal conditions of heat transfer, temperature distribution and fluid flow stream lines respectively. It is expected that, investigating different geometries can give us enough opportunity to identify the most appropriate geometry of porous blocks. This achievement enables us to define the best possible mode of conducting the highest heat volume while the amount of pressure reduction is minimized concurrently. Results show that the amount of heat transfers from heat resources will increased when the porous media along with Nano-fluid are used simultaneously.