Iron Sphere in a 20 kHz Magnetic Field

Application ID: 12831

An iron sphere is exposed to a spatially uniform, sinusoidally time-varying, background magnetic field. The frequency of the field is such that there skin depth is smaller than the sphere radius. The induced currents in the sphere and the perturbation to the background field are computed. Proper meshing of domains with significant skin effect is addressed.

This model example illustrates applications of this type that would nominally be built using the following products: