Technique of complex geometry modeling and grid generation for fully electromagnetic particle simulation

Based on Open object libraries, an open-source library for computer aided geometry design (CAGD), the technique of complex geometry modeling and conformal grid generation used for fully electromagnetic particle simulation is given. The characteristics of Open CASCADE are introduced, the design, pattern and capability of EasyEMModeling, our self-developed codes for complex geometry modeling, are introduced, and the generation method of conformal boundary in Yee grids is given by using line-surface intersection function offered by Open CASCADE. Finally, the technique is verified by a 3D numerical experiment.