Streamer formation in coronal discharges
- Lawrence Livermore National Lab., CA (United States)
Filamentary streamer discharges are of current interest due to their application to pollution control devices. Streamers produce non-thermal energetic electrons which, through dissociation and ionization processes, generate active radicals that in turn react with toxic molecules. For a given chemical gas mixture, the energy distribution of the electrons produced as the streamer bridges the gap between the electrodes is determined by the spatial and temporal evolution of the streamer. Streamers propagate due to a highly non-linear space charge driven ionization wave. The authors have developed a multi-dimensional coronal discharge model that can be applied to arbitrarily shaped electrode structures. They have applied this code to study some of the issues related to finding the optimum working conditions for streamers in corona discharges. They show for a point-to-plane electrode geometry in air how a coronal discharge evolves, as a function of gap voltage, from a diffuse to a filamentary streamer discharge.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 67886
- Report Number(s):
- CONF-9310400--
- Journal Information:
- Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 13 Vol. 38; ISSN BAPSA6; ISSN 0003-0503
- Country of Publication:
- United States
- Language:
- English
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