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Numerical simulations of non-thermal electrical discharges in air

Yuriy Serdyuk (Institutionen för material- och tillverkningsteknik, Högspänningsteknik)
Lightning electromagnetics p. 87-138. (2012)
[Kapitel]

Fundamental processes in low-temperature non-equilibrium gas discharges are briefly reviewed. Basic principles of a hydrodynamic approach for modelling such discharges are discussed. Implementation of the model in commercial finite-element software is presented and its capabilities are illustrated by results of computer simulations of corona discharges in air. Further, specific features of streamer discharges are elucidated. Numerical challenges in simulations of streamers dynamics are introduced and a finite-difference implementation of the streamer propagation model is presented. Properties and characteristics of positive and negative streamers in air are discussed based on the results of the computer simulations.

Nyckelord: low-temperature plasma, electron avalanche, corona discharge, streamer discharge, hydrodynamic model, numerical simulations



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Denna post skapades 2012-07-04. Senast ändrad 2015-02-11.
CPL Pubid: 160032

 

Institutioner (Chalmers)

Institutionen för material- och tillverkningsteknik, Högspänningsteknik

Ämnesområden

Energi
Plasmafysik
Elektrofysik

Chalmers infrastruktur