| JOVANOVIĆ, Aleksandar P., Tomáš HODER, Hans HÖFT, Detlef LOFFHAGEN a Markus M. BECKER. Formation mechanisms of striations in a filamentary dielectric barrier discharge in atmospheric-pressure argon. Plasma Sources Science and Technology. IOP Publishing Ltd, 2023, roč. 32, č. 5, s. 1-16. ISSN 0963-0252. Dostupné z: https://dx.doi.org/10.1088/1361-6595/acd2fc. |
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@article{2352117,
author = {Jovanović, Aleksandar P. and Hoder, Tomáš and Höft, Hans and Loffhagen, Detlef and Becker, Markus M.},
article_number = {5},
doi = {http://dx.doi.org/10.1088/1361-6595/acd2fc},
keywords = {striations; dielectric barrier discharge; fluid modelling},
language = {eng},
issn = {0963-0252},
journal = {Plasma Sources Science and Technology},
title = {Formation mechanisms of striations in a filamentary dielectric barrier discharge in atmospheric-pressure argon},
url = {https://doi.org/10.34711/inptdat.669},
volume = {32},
year = {2023}
}
TY - JOUR
ID - 2352117
AU - Jovanović, Aleksandar P. - Hoder, Tomáš - Höft, Hans - Loffhagen, Detlef - Becker, Markus M.
PY - 2023
TI - Formation mechanisms of striations in a filamentary dielectric barrier discharge in atmospheric-pressure argon
JF - Plasma Sources Science and Technology
VL - 32
IS - 5
SP - 1-16
EP - 1-16
PB - IOP Publishing Ltd
SN - 09630252
KW - striations
KW - dielectric barrier discharge
KW - fluid modelling
UR - https://doi.org/10.34711/inptdat.669
N2 - Formation mechanisms of striations along the discharge channel of a single-filament dielectric barrier discharge (DBD) in argon at atmospheric pressure are investigated by means of a time-dependent, spatially two-dimensional fluid-Poisson model. The model is applied to a one-sided DBD arrangement with a 1.5 mm gap using a sinusoidal high voltage at the powered metal electrode. The discharge conditions are chosen to mimic experimental conditions for which striations have been observed. It is found that the striations form in both half-periods during the transient glow phase, which follows the streamer breakdown phase. The modelling results show that the distinct striated structures feature local spatial maxima and minima in charged and excited particle densities, which are more pronounced during the positive polarity. Their formation is explained by a repetitive stepwise ionisation of metastable argon atoms and ionisation of excimers, causing a disturbance of the spatial distribution of charge carriers along the discharge channel. The results emphasise the importance of excited states and stepwise ionisation processes on the formation of repetitive ionisation waves, eventually leading to striations along the discharge channel.
ER -
JOVANOVI$\backslash$'C, Aleksandar P., Tomáš HODER, Hans HÖFT, Detlef LOFFHAGEN a Markus M. BECKER. Formation mechanisms of striations in a filamentary dielectric barrier discharge in atmospheric-pressure argon. \textit{Plasma Sources Science and Technology}. IOP Publishing Ltd, 2023, roč.~32, č.~5, s.~1-16. ISSN~0963-0252. Dostupné z: https://dx.doi.org/10.1088/1361-6595/acd2fc.
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