Open AccessTwo-dimensional simulation of atmospheric pressure cold plasma jets in a needle-plane electrode configuration
Author(s) -
Fucheng Liu,
Wen Yan,
Dezhen Wang
Publication year - 2013
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.62.175204
Subject(s) - plasma , atmospheric pressure , atomic physics , atmospheric pressure plasma , materials science , jet (fluid) , electron density , radius , helium , dielectric , electron , electron temperature , ionization , electrode , plane (geometry) , ion , mechanics , physics , optoelectronics , meteorology , nuclear physics , geometry , quantum mechanics , mathematics , computer security , computer science
The propagation mechanisms of atmospheric pressure cold plasma jets have recently attracted much attention. In this paper, by using a self-consistent two-dimensional plasma fluid model, we have investigated the propagation problems in the cold atmospheric pressure helium plasma jets that are surrounded by helium itself and thin dielectric tube, respectively. The spatio-temporal distributions of electron density, ionization rate, electrical field, and electron temperature were obtained. It is found that both the radius and the permittivity of dielectric tube have an impact on the discharge characteristics. A new method of improving the electron density and plasma jet size was also proposed.