Numerical simulation of forced convection of nanofluids inside a wavy micro channel in the presence of magnetic field effect

In this study, numerical method of forced convection heat transfer of laminar flow of nano fluid water and copper oxide in wavy micro channel in the presence of magnetic field is investigated. The equations of flow stream function, vorticity and energy are discretized by finite difference method and are solved according to the desired boundary conditions and the development of a FORTRAN software. The effect of various parameters such as Reynolds number 50-500, volume fraction 0-10%, Hartmann number 0-20, and wave amplitude 0 – 0.3 was evaluated in improving the performance of a wavy micro channel. According to the presented results, the sinusoidal shape of the micro channel has a direct effect on the heat transfer and the Nusselt number increases with the increase of the micro channel wave amplitude. On the other hand, the vortices created at high Reynolds have also improved micro channel efficiency and increased heat transfer. The results showed that with increasing Hartmann number the flow line near the wall became more regular and due to the created temperature gradient, the Nusselt number increased