Morphology of positive ionization waves in atmospheric pressure
air: influence of electrode set-up geometry

J 2021

Morphology of positive ionization waves in atmospheric pressure air: influence of electrode set-up geometry

BOURDON, Anne, François PÉCHEREAU, Fabien THOLIN a Zdeněk BONAVENTURA

Základní údaje

Originální název

Morphology of positive ionization waves in atmospheric pressure air: influence of electrode set-up geometry

Autoři

BOURDON, Anne, François PÉCHEREAU, Fabien THOLIN a Zdeněk BONAVENTURA (203 Česká republika, domácí)

Vydání

Plasma Sources Science and Technology, IOP Publishing Ltd, 2021, 0963-0252

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10305 Fluids and plasma physics

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 4.124

Kód RIV

RIV/00216224:14310/21:00124479

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1088/1361-6595/ac2be5

UT WoS

000714747700001

Klíčová slova anglicky

nanosecond discharge in air at atmospheric pressure; ionization wave dynamics; fluid simulation

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 22. 2. 2024 10:10, Mgr. Marie Šípková, DiS.

Anotace

V originále

A numerical parametric study on positive diffuse discharges in point-to-plane geometry in air at atmospheric pressure is presented. Different discharge characteristics are studied: ignition time, connection time to the grounded cathode plane, shape of the discharge and its maximum radius at the connection time, evolution of the maximum electric field in the discharge front and velocity of the ionization front during its propagation. First, a case at a DC voltage of 50 kV applied on a rod anode ended by a semi-sphere with a radius of 100 mu m set at 1.6 cm from a grounded cathode plane is considered. The influence of the rod radius, the position of a disc holder, the shape of the anode electrode and the radial extension of the computational domain are studied. The radius of curvature of the anode tip (varied between 100 and 1000 mu m) and the shape of the anode electrode (rod or hyperbola) are shown to have a negligible influence on discharge characteristics. Conversely, the presence of a disc holder or a small radial computational domain lead to a decrease of the maximum discharge radius at the connection time and a change in the discharge shape from a conical to an ellipsoidal shape. These changes on the discharge morphology have only a limited impact on the propagation velocity of the discharge front and maximum electric field on the discharge axis. Then, a point-to-plane geometry with a rod electrode of 50 mu m radius, in a 1.6 cm gap, with a 100 kV voltage applied with a rise time of 1 ns is studied. The influence of a disc holder on the discharge characteristics is the same as for lower DC voltages. Finally, the time evolution of the absolute value of the electric field at different test points on the discharge axis is studied. Close to the anode tip, rapidly after the peak of electric field due to the passage of the ionization front, the electric field in the discharge channel is shown to increase to values higher than the breakdown field.

Návaznosti

90097, velká výzkumná infrastruktura

Název: CEPLANT

Citovat

BOURDON, Anne, François PÉCHEREAU, Fabien THOLIN a Zdeněk BONAVENTURA. Morphology of positive ionization waves in atmospheric pressure air: influence of electrode set-up geometry. Plasma Sources Science and Technology. IOP Publishing Ltd, 2021, roč. 30, č. 10, s. 1-21. ISSN 0963-0252. Dostupné z: https://dx.doi.org/10.1088/1361-6595/ac2be5.

@article{1844320,
   author = {Bourdon, Anne and Péchereau, François and Tholin, Fabien and Bonaventura, Zdeněk},
   article_number = {10},
   doi = {http://dx.doi.org/10.1088/1361-6595/ac2be5},
   keywords = {nanosecond discharge in air at atmospheric pressure; ionization wave dynamics; fluid simulation},
   language = {eng},
   issn = {0963-0252},
   journal = {Plasma Sources Science and Technology},
   title = {Morphology of positive ionization waves in atmospheric pressure air: influence of electrode set-up geometry},
   url = {https://iopscience.iop.org/article/10.1088/1361-6595/ac2be5/meta},
   volume = {30},
   year = {2021}
}

TY  - JOUR
ID  - 1844320
AU  - Bourdon, Anne - Péchereau, François - Tholin, Fabien - Bonaventura, Zdeněk
PY  - 2021
TI  - Morphology of positive ionization waves in atmospheric pressure air: influence of electrode set-up geometry
JF  - Plasma Sources Science and Technology
VL  - 30
IS  - 10
SP  - 1-21
EP  - 1-21
PB  - IOP Publishing Ltd
SN  - 09630252
KW  - nanosecond discharge in air at atmospheric pressure
KW  - ionization wave dynamics
KW  - fluid simulation
UR  - https://iopscience.iop.org/article/10.1088/1361-6595/ac2be5/meta
N2  - A numerical parametric study on positive diffuse discharges in point-to-plane geometry in air at atmospheric pressure is presented. Different discharge characteristics are studied: ignition time, connection time to the grounded cathode plane, shape of the discharge and its maximum radius at the connection time, evolution of the maximum electric field in the discharge front and velocity of the ionization front during its propagation. First, a case at a DC voltage of 50 kV applied on a rod anode ended by a semi-sphere with a radius of 100 mu m set at 1.6 cm from a grounded cathode plane is considered. The influence of the rod radius, the position of a disc holder, the shape of the anode electrode and the radial extension of the computational domain are studied. The radius of curvature of the anode tip (varied between 100 and 1000 mu m) and the shape of the anode electrode (rod or hyperbola) are shown to have a negligible influence on discharge characteristics. Conversely, the presence of a disc holder or a small radial computational domain lead to a decrease of the maximum discharge radius at the connection time and a change in the discharge shape from a conical to an ellipsoidal shape. These changes on the discharge morphology have only a limited impact on the propagation velocity of the discharge front and maximum electric field on the discharge axis. Then, a point-to-plane geometry with a rod electrode of 50 mu m radius, in a 1.6 cm gap, with a 100 kV voltage applied with a rise time of 1 ns is studied. The influence of a disc holder on the discharge characteristics is the same as for lower DC voltages. Finally, the time evolution of the absolute value of the electric field at different test points on the discharge axis is studied. Close to the anode tip, rapidly after the peak of electric field due to the passage of the ionization front, the electric field in the discharge channel is shown to increase to values higher than the breakdown field.
ER  -

BOURDON, Anne, Fran$\backslash$c cois PÉCHEREAU, Fabien THOLIN a Zdeněk BONAVENTURA. Morphology of positive ionization waves in atmospheric pressure air: influence of electrode set-up geometry. \textit{Plasma Sources Science and Technology}. IOP Publishing Ltd, 2021, roč.~30, č.~10, s.~1-21. ISSN~0963-0252. Dostupné z: https://dx.doi.org/10.1088/1361-6595/ac2be5.

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