A Hybrid Magnetic Field Solver Using a Combined Finite Element/Boundary Element Field Solver
The dominant method to solve magnetic field problems is the finite element method. It has been used successfully on many devices including motors, solenoids, and actuators. More formally using finite elements is a method of solving Maxwell's equations in differential form. The less common method of solving magnetic field problems is using the boundary element method. It has been used successfully on many magnetic field problems including sensors, NMR machines, and beam analysis problems. Boundary elements are associated with solving Maxwell's equations in integral form. Both methods have some inherent advantages and disadvantages. The ideal solution would be to solve a given problem where the advantages of both methods could be applied simultaneously. This paper discusses the advantages of such an approach.