A finite volume method for electrostatic three species negative corona discharge simulations with application to externally charged powder bells
Journal article, 2015

A three species model for steady-state negative corona discharge is studied. Ionization, attachment, and recombination reactions are modeled. A novel unstructured finite volume algorithm to solve the equations is presented, using the secondary emission of electrons from the cathode to set boundary values for the electrons. To show the usefulness of the method for industrial applications it is used to characterize the electrostatic properties of an externally charged rotary powder bell used in the automotive industry. Experimental current density profiles are reconstructed with good accuracy, which validates the model and the method with real experimental data.

Secondary emission

Externally charged spray painting

Three-species model

Warburg formula

Negative corona discharge

Finite-volume discretization


Tomas Johnson

Stefan Jakobsson

Benjamin Svedung Wettervik

Björn O Andersson

Fredrik Edelvik

Journal of Electrostatics

0304-3886 (ISSN)

Vol. 74 27-36

Areas of Advance


Subject Categories

Computational Mathematics

Fusion, Plasma and Space Physics

Other Electrical Engineering, Electronic Engineering, Information Engineering


Basic sciences



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