Title :
Fully coupled finite element modeling for accurate prediction of breakdown voltage in air at atmospheric pressure
Author :
Kim, Nam-Kyung ; Lee, Se-Hee ; Georghiou, G.E. ; Lim, Sunghwan ; Kim, Dong-Hun
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Kyungpook Nat. Univ., Daegu, South Korea
Abstract :
To accurately predict the breakdown voltage in air at atmospheric pressure, this paper proposes a fully coupled finite element analysis combining the hydrodynamic diffusion-drift with the Poisson´s equations. The numerical approach has been successfully applied to evaluating the breakdown voltage in a parallel-plane electrode and then the effects of photoemission and background ionization on the breakdown voltage are thoroughly investigated. The method is verified by comparison of the experimental results.
Keywords :
atmospheric pressure; electric breakdown; finite element analysis; thermodynamics; Poisson equation; atmospheric pressure; breakdown voltage; fully coupled finite element modeling; hydrodynamic diffusion-drift; numerical approach; parallel-plane electrodes; photoemission-background ionization; Atmospheric modeling; Breakdown voltage; Cathodes; Electrodes; Electrons; Finite element methods; Hydrodynamics; Ionization; Photoelectricity; Predictive models;
Conference_Titel :
Electromagnetic Field Computation (CEFC), 2010 14th Biennial IEEE Conference on
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4244-7059-4
DOI :
10.1109/CEFC.2010.5481306
