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@article{2297297,
author = {Arsénio Nunes Aleixo Viegas, Pedro and Dias, Tiago Cunha and Fromentin, Chloe and Chukalovsky, Alexander and Mankelevich, Yuri and Proshina, Olga and Rakhimova, Tatyana and Guerra, Vasco and Voloshin, Dmitry},
article_number = {2},
doi = {http://dx.doi.org/10.1088/1361-6595/acbb9c},
keywords = {oxygen kinetics; discharge spatial resolution; global model; fluid model},
language = {eng},
issn = {0963-0252},
journal = {Plasma Sources Science and Technology},
title = {Comparison between 1D radial and 0D global models for low-pressure oxygen DC glow discharges},
url = {https://doi.org/10.1088/1361-6595/acbb9c},
volume = {32},
year = {2023}
}
TY - JOUR
ID - 2297297
AU - Arsénio Nunes Aleixo Viegas, Pedro - Dias, Tiago Cunha - Fromentin, Chloe - Chukalovsky, Alexander - Mankelevich, Yuri - Proshina, Olga - Rakhimova, Tatyana - Guerra, Vasco - Voloshin, Dmitry
PY - 2023
TI - Comparison between 1D radial and 0D global models for low-pressure oxygen DC glow discharges
JF - Plasma Sources Science and Technology
VL - 32
IS - 2
SP - 1-16
EP - 1-16
PB - IOP Publishing Ltd
SN - 09630252
KW - oxygen kinetics
KW - discharge spatial resolution
KW - global model
KW - fluid model
UR - https://doi.org/10.1088/1361-6595/acbb9c
N2 - This work focuses on the comparison between a zero-dimensional (0D) global model (LoKI) and a one-dimensional (1D) radial fluid model for the positive column of oxygen DC glow discharges in a tube of 1 cm inner radius at pressures between 0.5 Torr and 10 Torr. The data used in the two models are the same, so that the difference between the models is reduced to dimensionality. A good agreement is found between the two models on the main discharge parameters (gas temperature, electron density, reduced electric field and dissociation fraction), with relative differences below 5%. The agreement on other species average number densities, charged and neutral, is slightly worse, with relative differences increasing with pressure from 11% at 0.5 Torr to 57% at 10 Torr. The success of the 0D global model in describing these plasmas through volume averaged quantities decreases with pressure, due to pressure-driven narrowing of radial profiles. Hence, in the studied conditions, we recommend the use of volume-averaged models only in the pressure range up to 10 Torr.
ER -
ARSÉNIO NUNES ALEIXO VIEGAS, Pedro, Tiago Cunha DIAS, Chloe FROMENTIN, Alexander CHUKALOVSKY, Yuri MANKELEVICH, Olga PROSHINA, Tatyana RAKHIMOVA, Vasco GUERRA a Dmitry VOLOSHIN. Comparison between 1D radial and 0D global models for low-pressure oxygen DC glow discharges. \textit{Plasma Sources Science and Technology}. IOP Publishing Ltd, 2023, roč.~32, č.~2, s.~1-16. ISSN~0963-0252. Dostupné z: https://dx.doi.org/10.1088/1361-6595/acbb9c.
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