Abstract
Open-boundary problems are encountered in the analysis of electric and magnetic fields in engineering applications. Examples of these are dielectric stresses in electrostatic applications, eddy current fields due to shielded power cables and bus ducts, induction heating, and magnetic levitation. Discretization of the total field region is computationally unwieldy. Bounding the field region, on the other hand, by a diamagnetic boundary imposes the effect of artificial sources. A hybrid approach to solving the field problem which combines the traditional finite element method for the interior with harmonic functions for the potential solution in the exterior region is presented. The method is applied to illustrative eddy current problems.
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