Numerical investigation on the liquid metal flow and heat transfer in the multi-step enclosure in the existence of magnetic field

In the present study, the authors executed the numerical analysis on the impact of external magnetic field on the flow pattern and heat propagation in liquid metal for the multi-step channel. The numerical analysis platform used in the present study is established on the open source CFD tool OpenFOAM. The partial differential equations comprised of Navier-Stokes and Energy equation coupled with electrodynamics equations. The Reynolds number of liquid metal flow in the multi-step enclosure is regulated at Re = 1000, and the magnetic force is regulated by altering Hartmann number of Ha = 0, 500, 1000, and 1500. The numerically obtained results demonstrate that the use of magnetic field promoted the decline of eddies in the flow and permits the liquid metal to occupy the complete domain, which afterward shows the uniform temperature variation at the higher Hartmann number.