A numerical algorithm for simulation of the electric corona discharge in the triode system. (English) Zbl 0936.78007
Summary: A numerical algorithm is described to calculate the charge density, electric field and corona current distribution in the corona triode. The algorithm employs a hybrid technique based on the Boundary and Finite Element Methods (FEM). FEM is used to determine the electric field because of free space charge produced by the corona discharge. The Boundary Element Method (BEM) is applied for calculating the other component of electric field as a result of the voltage applied to the electrodes. The Method of Characteristics (MOC) is used to update the space charge density distribution. The characteristic lines are traced backwards from points of the analysed domain to the corona wire. The current density, electric field and space charge density distributions can be controlled by changing the configuration of the system. Results of calculations in a few different cases show the influence of different parameters on the work of the corona triode.
MSC:
| 78M10 | Finite element, Galerkin and related methods applied to problems in optics and electromagnetic theory |
| 78A35 | Motion of charged particles |
| 78M15 | Boundary element methods applied to problems in optics and electromagnetic theory |
Keywords:
Corona discharge; triode system; electric field; boundary element method; finite element methodReferences:
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