Detailed Information on Publication Record
2023
Comparison between 1D radial and 0D global models for low-pressure oxygen DC glow discharges
ARSÉNIO NUNES ALEIXO VIEGAS, Pedro, Tiago Cunha DIAS, Chloe FROMENTIN, Alexander CHUKALOVSKY, Yuri MANKELEVICH et. al.Basic information
Original name
Comparison between 1D radial and 0D global models for low-pressure oxygen DC glow discharges
Authors
ARSÉNIO NUNES ALEIXO VIEGAS, Pedro (620 Portugal, belonging to the institution), Tiago Cunha DIAS, Chloe FROMENTIN, Alexander CHUKALOVSKY, Yuri MANKELEVICH, Olga PROSHINA, Tatyana RAKHIMOVA, Vasco GUERRA and Dmitry VOLOSHIN
Edition
Plasma Sources Science and Technology, IOP Publishing Ltd, 2023, 0963-0252
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10305 Fluids and plasma physics
Country of publisher
United Kingdom of Great Britain and Northern Ireland
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 3.800 in 2022
RIV identification code
RIV/00216224:14310/23:00131231
Organization unit
Faculty of Science
UT WoS
000939001700001
Keywords in English
oxygen kinetics; discharge spatial resolution; global model; fluid model
Tags
Tags
International impact, Reviewed
Změněno: 21/2/2024 16:14, Mgr. Marie Šípková, DiS.
Abstract
V originále
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.
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