| Автор | Dieter Pfirsch |
| Автор | Darío Correa-Restrepo |
| Дата выпуска | 1997-04-01 |
| dc.description | For drift waves and related instabilities, conservation laws can play a crucial role. In an ideal theory these conservation laws are guaranteed when a Lagrangian can be found from which the equations for the various quantities result by Hamilton's principle. Such a Lagrangian for plasmas in the drift-fluid approximation was obtained by a heuristic method in a recent paper by Pfirsch and Correa-Restrepo. In the present paper the same Lagrangian is derived from the exact multifluid Lagrangian via an iterative approximation procedure which resembles the standard method usually applied to the equations of motion. That method, however, does not guarantee that all the conservation laws hold. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Lagrangians for plasmas in the drift-fluid approximation |
| Тип | paper |
| DOI | 10.1088/0741-3335/39/4/003 |
| Electronic ISSN | 1361-6587 |
| Print ISSN | 0741-3335 |
| Журнал | Plasma Physics and Controlled Fusion |
| Том | 39 |
| Первая страница | 555 |
| Последняя страница | 558 |
| Аффилиация | Dieter Pfirsch; Max-Planck-Institut für Plasmaphysik, EURATOM Association, D-85748 Garching, Germany |
| Аффилиация | Darío Correa-Restrepo; Max-Planck-Institut für Plasmaphysik, EURATOM Association, D-85748 Garching, Germany |
| Выпуск | 4 |
