The accurate calculation of magnetic fields in the vicinity of current carrying conductors is a challenge that can be alleviated through use of surface impedance boundary conditions (SIBCs). This permits elimination of the conductors provided that the skin effect dominates at the surface and results in significant reduction of the computer resources required for computation. The numerical method best suited for the use with the SIBCs is the boundary element method because in BEM and SIBC the functions are approximated at the same points on the interface between the media. This approach is almost ideal for solution of time harmonic problems and in fact BEM-SIBC formulations have been widely used for analysis of skin and proximity effect problems of multiconductor systems.
Approximation Errors Using Time Domain Surface Impedance Boundary Conditions in Eddy Current Problems
BARMADA, SAMI;
2004-01-01
Abstract
The accurate calculation of magnetic fields in the vicinity of current carrying conductors is a challenge that can be alleviated through use of surface impedance boundary conditions (SIBCs). This permits elimination of the conductors provided that the skin effect dominates at the surface and results in significant reduction of the computer resources required for computation. The numerical method best suited for the use with the SIBCs is the boundary element method because in BEM and SIBC the functions are approximated at the same points on the interface between the media. This approach is almost ideal for solution of time harmonic problems and in fact BEM-SIBC formulations have been widely used for analysis of skin and proximity effect problems of multiconductor systems.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
