Experimental investigation of characteristics of liquid metal flow generated by alternating magnetic field

The energy and spectral characteristics of the oscillating vortex flow of a liquid gallium eutectic were experimentally investigated using ultrasonic Doppler velocimetr (UDV). The velocity profiles show that the greatest intensity of the flow occurs in the central area near of the inductor’s poles, and grows with the increase of the external field magnitude. A nonlinear nonmonotonic character of the flow local kinetic energy dependence from magnitude of the applied external alternating magnetic field was found. It was found that small displacements of the inductor poles from the geometric center of the cell with the metal lead to extinction of the oscillations of the vortices.