A Magneto-hydrodynamic (MHD) model was built using a Phi-A potential formulation. This model was applied to a system representing the Aluminium reduction cell. The flow is modelled with the Navier-stokes equations. The calculation domain was built with 15 millions cells, allowing extremely precise prediction of the turbulence and the interface tracking. Due to the interface movement, the Electromagnetic variables are recalculated at each time step. Several simulations would show very surprising effects. The results show that if the imposed current reaches a certain magnitude, due to a pinch effects some liquid metal droplets start to depart from the tip of the interface waves. A cloud of droplets is quickly generated, that attracts more electric current. The interaction between the cloud, the interface, and the electromagnetic field was found to be extremely complex.