| Автор | Benilov, M S |
| Автор | Faria, M J |
| Дата выпуска | 2007-09-07 |
| dc.description | Spectra of perturbations of steady-state current transfer to cathodes of high-pressure argon arcs are computed in the framework of the model of nonlinear surface heating. The following pattern of stability has been established for a current-controlled arc on a cylindrical cathode on the basis of the numerical results and trends derived previously by means of an approximate analytical treatment: the diffuse mode is stable beyond the first bifurcation point and unstable at lower currents; steady-state modes with more than one spot are unstable; the axially symmetric mode with a spot at the centre of the front surface of the cathode is unstable; the 3D steady-state mode with a spot at the edge is unstable between the bifurcation point and the turning point and stable beyond the turning point; the transition between the latter mode and the diffuse mode is non-stationary and accompanied by hysteresis. Theoretical results are in agreement with trends observed in the experiment. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Копирайт | 2007 IOP Publishing Ltd |
| Название | Stability of direct current transfer to thermionic cathodes: II. Numerical simulation |
| Тип | paper |
| DOI | 10.1088/0022-3727/40/17/014 |
| Electronic ISSN | 1361-6463 |
| Print ISSN | 0022-3727 |
| Журнал | Journal of Physics D: Applied Physics |
| Том | 40 |
| Первая страница | 5083 |
| Последняя страница | 5097 |
| Последняя страница | 5097 |
| Аффилиация | Benilov, M S; Departamento de Física, Universidade da Madeira, Largo do Município, 9000 Funchal, Portugal |
| Аффилиация | Faria, M J; Departamento de Física, Universidade da Madeira, Largo do Município, 9000 Funchal, Portugal |
| Выпуск | 17 |
