Numerical solution of 3D magnetic field problems using boundary integral equations

The extension of the boundary integral equation method to 3D magnetostatic problems is described in this paper. The boundary integral equation method rests upon a magnetic scalar potential and normal flux density formulation, and uses a finite elements discretisation of the boundaries of material regions. Theoretical basis and numerical discretisation are outlined. Emphasis is put on the geometric and intrinsic singularities processing. Computation experiments are then made using a hollow sphere test problem.