A simplified fluid model of the metallic plasma and neutral gas interaction in a multicathode spot vacuum arc
A stationary fluid model with spherical symmetry is presented to describe the interaction between metallic plasma ions with neutral gas in the outer region of a multicathode spot vacuum arc operated with a neutral background gas. It is found that the neutrals penetrate into the metallic plasma with...
Guardado en:
| Autores principales: | , , |
|---|---|
| Formato: | JOUR |
| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00933813_v26_n4_p1322_Kelly |
| Aporte de: |
| id |
todo:paper_00933813_v26_n4_p1322_Kelly |
|---|---|
| record_format |
dspace |
| spelling |
todo:paper_00933813_v26_n4_p1322_Kelly2023-10-03T14:55:30Z A simplified fluid model of the metallic plasma and neutral gas interaction in a multicathode spot vacuum arc Kelly, H. Marquez, A. Minotti, F.O. Fluid model Ion-gas interaction Vacuum arc Cathodes Electric arcs Ion beams Kinetic energy Mathematical models Plasma density Vacuum technology Multicathode spot vacuum arcs Stationary fluid model Beam plasma interactions A stationary fluid model with spherical symmetry is presented to describe the interaction between metallic plasma ions with neutral gas in the outer region of a multicathode spot vacuum arc operated with a neutral background gas. It is found that the neutrals penetrate into the metallic plasma with density values smaller than the initial gas density values, but higher than the metallic ion densities. The neutrals are also strongly heated during the transient expansion stage of the metallic plasma. As a consequence, the ion kinetic energy is gradually delivered to the neutral gas so that the mean free path for ion-neutral elastic collisions is larger than the visible plasma ball radius which surrounds the arc. © 1998 IEEE. Fil:Kelly, H. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Marquez, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Minotti, F.O. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00933813_v26_n4_p1322_Kelly |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Fluid model Ion-gas interaction Vacuum arc Cathodes Electric arcs Ion beams Kinetic energy Mathematical models Plasma density Vacuum technology Multicathode spot vacuum arcs Stationary fluid model Beam plasma interactions |
| spellingShingle |
Fluid model Ion-gas interaction Vacuum arc Cathodes Electric arcs Ion beams Kinetic energy Mathematical models Plasma density Vacuum technology Multicathode spot vacuum arcs Stationary fluid model Beam plasma interactions Kelly, H. Marquez, A. Minotti, F.O. A simplified fluid model of the metallic plasma and neutral gas interaction in a multicathode spot vacuum arc |
| topic_facet |
Fluid model Ion-gas interaction Vacuum arc Cathodes Electric arcs Ion beams Kinetic energy Mathematical models Plasma density Vacuum technology Multicathode spot vacuum arcs Stationary fluid model Beam plasma interactions |
| description |
A stationary fluid model with spherical symmetry is presented to describe the interaction between metallic plasma ions with neutral gas in the outer region of a multicathode spot vacuum arc operated with a neutral background gas. It is found that the neutrals penetrate into the metallic plasma with density values smaller than the initial gas density values, but higher than the metallic ion densities. The neutrals are also strongly heated during the transient expansion stage of the metallic plasma. As a consequence, the ion kinetic energy is gradually delivered to the neutral gas so that the mean free path for ion-neutral elastic collisions is larger than the visible plasma ball radius which surrounds the arc. © 1998 IEEE. |
| format |
JOUR |
| author |
Kelly, H. Marquez, A. Minotti, F.O. |
| author_facet |
Kelly, H. Marquez, A. Minotti, F.O. |
| author_sort |
Kelly, H. |
| title |
A simplified fluid model of the metallic plasma and neutral gas interaction in a multicathode spot vacuum arc |
| title_short |
A simplified fluid model of the metallic plasma and neutral gas interaction in a multicathode spot vacuum arc |
| title_full |
A simplified fluid model of the metallic plasma and neutral gas interaction in a multicathode spot vacuum arc |
| title_fullStr |
A simplified fluid model of the metallic plasma and neutral gas interaction in a multicathode spot vacuum arc |
| title_full_unstemmed |
A simplified fluid model of the metallic plasma and neutral gas interaction in a multicathode spot vacuum arc |
| title_sort |
simplified fluid model of the metallic plasma and neutral gas interaction in a multicathode spot vacuum arc |
| url |
http://hdl.handle.net/20.500.12110/paper_00933813_v26_n4_p1322_Kelly |
| work_keys_str_mv |
AT kellyh asimplifiedfluidmodelofthemetallicplasmaandneutralgasinteractioninamulticathodespotvacuumarc AT marqueza asimplifiedfluidmodelofthemetallicplasmaandneutralgasinteractioninamulticathodespotvacuumarc AT minottifo asimplifiedfluidmodelofthemetallicplasmaandneutralgasinteractioninamulticathodespotvacuumarc AT kellyh simplifiedfluidmodelofthemetallicplasmaandneutralgasinteractioninamulticathodespotvacuumarc AT marqueza simplifiedfluidmodelofthemetallicplasmaandneutralgasinteractioninamulticathodespotvacuumarc AT minottifo simplifiedfluidmodelofthemetallicplasmaandneutralgasinteractioninamulticathodespotvacuumarc |
| _version_ |
1807323051719655424 |