Regular paper Simulation of Corona Discharge in DC

Ahmed Kasdi, Youcef Zebboudj, Hakim Yala, Electrostatic Precipitator, Jes
Journal of Journal of Journal of Journal of Electrical Electrical Electrical   unpublished
The stable positive DC corona discharge in atmospheric air under a wire-to-cylinder system is analyzed in this paper. An iterative finite element technique is developed to obtain a general solution of the governing equations of the coupled space-charge and electric field problem. The technique is to use the finite-element method (FEM) to solve Poisson's equation and the method of characteristics (MOC) to find the charge density from a current-continuity relation. Besides, the corona ionized
more » ... corona ionized field is successfully modeled using COMSOL MULTIPHYSICS 3.4. Two application modes are used to solve system of coupled equations with appropriate boundary conditions: PDE (General Form) mode for electric potential distribution and Convection and Diffusion mode for charge transport equation. In order to validate the presented numerical methods a comparison with analytical solution and measured data are made. The obtained results are in good agreement.