Various BEM formulations for calculating eddy currents in terms of field variables

Several boundary element formulations using the electric and magnetic field vectors are presented for eddy current problems. The robustness and the accuracy of the numerical approach depending on the frequency and the material properties of the eddy current region are investigated. Numerical results of a conducting sphere model are compared with analytical solutions. In additional examples the treatment of structures containing geometrical singularities (ideal edges and corners) is shown and numerical results are presented.>