Two-dimensional simulation of fast gas heating in an atmospheric pressure streamer discharge and humidity effects

Gas heating in an atmospheric-pressure streamer discharge was analysed by a two-dimensional streamer discharge simulation model describing internal molecular energy transfer. Our two-dimensional streamer simulation model incorporates concepts from the fast gas heating mechanism proposed by Popov (20...

Full description

Saved in:
Bibliographic Details
Published inJournal of physics. D, Applied physics Vol. 47; no. 15; pp. 1 - 13
Main Authors Komuro, Atsushi, Ono, Ryo
Format Journal Article
LanguageEnglish
Published IOP Publishing 16.04.2014
Subjects
chemical reaction
Computer simulation
Discharge
Gas heating
Gas temperature
Humidity
Mathematical models
numerical simulation
Quenching
radical production
streamer discharge
Two dimensional
Online AccessGet full text

Cover

More Information
Summary:Gas heating in an atmospheric-pressure streamer discharge was analysed by a two-dimensional streamer discharge simulation model describing internal molecular energy transfer. Our two-dimensional streamer simulation model incorporates concepts from the fast gas heating mechanism proposed by Popov (2011 J. Phys. D: Appl. Phys. 44 285201) and our self-developed state-to-state vibrational kinetics. In dry air, gas heating occurs mainly from electron-impact dissociation reactions of O2 molecules and from quenching processes of electronically excited N2(B 3Πg, C 3Πu) molecules and O(1D) atoms. In humid air, rapid vibration-to-translation transitions of H2O and the exothermicity of the OH formation reactions additionally increase the gas temperature. It is shown that gas heating during the discharge pulse increases with humidity.
Bibliography:JPhysD-100896.R2
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ObjectType-Article-1
ObjectType-Feature-2
ISSN:0022-3727
1361-6463
DOI:10.1088/0022-3727/47/15/155202