A simple automatic mesh generation for complex electric area

The finite element method is the most popular numerical method in engineering, but its accuracy is closely related to the mesh quality. Especially for the electric field solution, the narrow area is often the initial area of the discharge. Obtaining a high-quality grid here is more conducive to capturing the local variation characteristics of the electric field intensity and other variables. However, current mesh algorithms are used as “black boxes”, The meshing software is difficult to integrate with other codes - so the user gives up control. In this paper, we propose a simple automatic mesh generation in Julia programming language. This mesh generation uses advancing front method to lay out node position in solution area, then the Delauney triangulation method is adopted to get the mesh. The global algorithm structure is simple and easy to implement and integrate with other codes., at the same time, the mesh quality could meet the demand of finite element method.