Contactless inductive flow tomography experiments with liquid metals

The three-dimensional velocity field of a propeller driven liquid metal flow in a cylindrical vessel is reconstructed by a contactless inductive flow tomography (CIFT). A reliable online monitoring of the flow can already be achieved by applying the external magnetic field alternately in two orthogonal directions and by measuring the corresponding sets of induced magnetic fields. The results of the new technique are shown to be in satisfactory agreement with ultrasonic measurements.