Numerical Simulation of Corona Discharge in wire-to-cylinder configuration using Comsol Multiphysics

Corona discharge is used in various ways in an increasing number of engineering applications. The analysis of ionized fields in different geometrical electrode arrangements has an important area of research. One of the configurations mostly used for theoretical and experimental studies is the wire-to-cylinder geometry, largely used in the design of the electrostatic precipitator (ESP). This paper deals with the numerical modelling of the corona discharge in atmospheric air in a coaxial type ESP. The corona governing equations are successfully implemented and solved using COMSOL MULTIPHYSICS, a commercial software package used in various physics and engineering applications to solve a wide range of partial differential equations by applying the finite element method. Three application modes…