Magnetic field analysis of a permanent magnet put in free space can be effectively performed by a boundary‐integral technique completed with an iterative procedure following a non‐linear magnetic curve of magnetic material. The general idea of the boundary‐integral model of the permanent magnet is presented, the iterative algorithm and test software are described and the results of test computations are shown.
Pawluk, K. and Życki, Z. (2000), "Boundary‐integral approach to determine the magnetic field created by a permanent magnet put in free space", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 19 No. 1, pp. 86-94. https://doi.org/10.1108/03321640010302834
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