Three-dimensional analysis of eddy current and electromagnetic force in cold crucibles

Three-dimensional eddy current distributions in cold crucibles are analyzed by using an integro-differential method. The electromagnetic force is calculated from the obtained eddy current distributions. In this paper, computations of eddy current and levitation force of the molten metal in some cold crucible models are performed, and the influences of coil position, the number of segments of the crucible, frequency of the coil current and gap length between the segments on the levitation force are discussed. Furthermore, an experimental verification is presented