Fluid Flows Induced by Alternating Magnetic Fields

Alternating magnetic fields are commonly used to create or to control liquid metal flows. Various fluid flow patterns may be obtained according to the intensity, the frequency and the phase shift of the applied electric currents. The magnetic field strength governs the amplitude of the velocity whilst the frequency controls both the amplitude and the configuration of the flow. Due to the skin effect, the electromagnetic forces may create strong velocity shears which are responsible for high turbulent intensity. Therefore, electromagnetic stirring is an efficient means for mixing.