Numerical Simulation of SiO2/Water Nanofluid Heat Transfer and Turbulent Flow in Rectangular Obstacle Channel

This paper focuses on the influence of obstacles and the use of nanofluid on heat transfer in turbulent flow along the channel. The governing equations were solved utilizing finite volume method. The main objective is to study the variations of the Reynolds number, as well as the a/b ratio, the distance between obstacles, and the volume fraction influencing the Nusselt number and the friction factor. The results indicate that the presence of obstacles in a channel and increase of Reynolds number can increase the heat transfer by inducing the formation of turbulent zones. As well, the use of nanofluids with a volume fraction also proves beneficial for heat transfer due to the increased thermal conductivity of the fluid. These results could have significant industrial and technological importance.