Finite-elements numerical model of the current-sheet movement and shaping in coaxial discharges
The movement and shaping of the current sheath in coaxial plasma guns is numerically modelled by means of a dynamic finite-elements representation. Numerical instabilities are avoided by a reshaping algorithm applied during the tracking of the current sheath acceleration. Improving upon older versio...
Guardado en:
| Publicado: |
2005
|
|---|---|
| Materias: | |
| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07413335_v47_n8_p1239_Casanova http://hdl.handle.net/20.500.12110/paper_07413335_v47_n8_p1239_Casanova |
| Aporte de: |
| id |
paper:paper_07413335_v47_n8_p1239_Casanova |
|---|---|
| record_format |
dspace |
| spelling |
paper:paper_07413335_v47_n8_p1239_Casanova2023-06-08T15:44:38Z Finite-elements numerical model of the current-sheet movement and shaping in coaxial discharges Acceleration Algorithms Capacitance Electric breakdown Electric currents Electric discharges Electric resistance Electrodes Inductance Mathematical models Permittivity Plasma guns Coaxial discharges Current sheaths Dielectric breakdown Filling pressures Finite element method The movement and shaping of the current sheath in coaxial plasma guns is numerically modelled by means of a dynamic finite-elements representation. Numerical instabilities are avoided by a reshaping algorithm applied during the tracking of the current sheath acceleration. Improving upon older versions of the algorithm, the present model includes a delay model to treat the dielectric breakdown. Comparison against experimental measurements showed very good performances in representing the arrival times of the shock front at different filling pressures. © 2005 IOP Publishing Ltd. 2005 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07413335_v47_n8_p1239_Casanova http://hdl.handle.net/20.500.12110/paper_07413335_v47_n8_p1239_Casanova |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Acceleration Algorithms Capacitance Electric breakdown Electric currents Electric discharges Electric resistance Electrodes Inductance Mathematical models Permittivity Plasma guns Coaxial discharges Current sheaths Dielectric breakdown Filling pressures Finite element method |
| spellingShingle |
Acceleration Algorithms Capacitance Electric breakdown Electric currents Electric discharges Electric resistance Electrodes Inductance Mathematical models Permittivity Plasma guns Coaxial discharges Current sheaths Dielectric breakdown Filling pressures Finite element method Finite-elements numerical model of the current-sheet movement and shaping in coaxial discharges |
| topic_facet |
Acceleration Algorithms Capacitance Electric breakdown Electric currents Electric discharges Electric resistance Electrodes Inductance Mathematical models Permittivity Plasma guns Coaxial discharges Current sheaths Dielectric breakdown Filling pressures Finite element method |
| description |
The movement and shaping of the current sheath in coaxial plasma guns is numerically modelled by means of a dynamic finite-elements representation. Numerical instabilities are avoided by a reshaping algorithm applied during the tracking of the current sheath acceleration. Improving upon older versions of the algorithm, the present model includes a delay model to treat the dielectric breakdown. Comparison against experimental measurements showed very good performances in representing the arrival times of the shock front at different filling pressures. © 2005 IOP Publishing Ltd. |
| title |
Finite-elements numerical model of the current-sheet movement and shaping in coaxial discharges |
| title_short |
Finite-elements numerical model of the current-sheet movement and shaping in coaxial discharges |
| title_full |
Finite-elements numerical model of the current-sheet movement and shaping in coaxial discharges |
| title_fullStr |
Finite-elements numerical model of the current-sheet movement and shaping in coaxial discharges |
| title_full_unstemmed |
Finite-elements numerical model of the current-sheet movement and shaping in coaxial discharges |
| title_sort |
finite-elements numerical model of the current-sheet movement and shaping in coaxial discharges |
| publishDate |
2005 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07413335_v47_n8_p1239_Casanova http://hdl.handle.net/20.500.12110/paper_07413335_v47_n8_p1239_Casanova |
| _version_ |
1768544323559751680 |