ACCURATE INTEGRATIONS IN THE BOUNDARY ELEMENT METHOD FOR 2D‐ EDDY CURRENTS Available to Purchase

An accurate integration is one of the key steps in the application of the Boundary Element Method (BEM) to the computation of electromagnetic fields. The integrations are generally calculated by means of Gaussian Quadrature Formulas, which work efficiently when d ≥ 1, where d = δ/Lj and δ is the minimum distance from a source point to an element of length Lj. But difficulties will occur when the source point is situated at or very near to the field point (i.e. r=0 or r<ε with r≠0), leading to a singular or nearly singular integration.