Computation of Electrostatic Field near Three-Dimensional Corners and Edges
arXiv:physics/0604033 · doi:10.1016/j.orgel.2011.09.023
Abstract
Theoretically, the electric field becomes infinite at corners of two and three dimensions and edges of three dimensions. Conventional finite-element and boundary element methods do not yield satisfactory results at close proximity to these singular locations. In this paper, we describe the application of a fast and accurate BEM solver (which usesexact analytic expressions to compute the effect of source distributions on flatsurfaces) to compute the electric field near three-dimensional corners and edges. Results have been obtained for distances as close as 1$μm$ near the corner/edge and good agreement has been observed between the present results and existing analytical solutions.
Presented in International Conference on Computational and Experimental Engineering and Sciences held at IIT Madras, Chennai, India, during 1-6 December, 2005