Автор |
Shinji Nakazawa |
Автор |
Noriyoshi Nakajima |
Автор |
Masao Okamoto |
Автор |
Nobuyoshi Ohyabu |
Дата выпуска |
2000-04-01 |
dc.description |
The stability of the radiation front in the scrape-off layer (SOL) of a tokamak is studied with a one-dimensional fluid code; the time-dependent transport equations are solved in the direction parallel to a magnetic field line. As the energy from the core into the SOL plasma is reduced, stable attached solutions change into stable detached solutions. Whenever such stable detached states are attained, the strong radiation front is in contact with or at a small distance from the divertor target. When the input energy is decreased further and total losses become larger than the input power, the radiation front starts to move towards the X-point, cooling the SOL plasma. In such a case, no solutions for the radiation front resting in the divertor channel are observed in our parameter space. This qualitatively corresponds to the results of tokamak divertor experiments which show the movement of the radiation front. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
One-dimensional simulation on stability of detached plasma in a tokamak divertor |
Тип |
paper |
DOI |
10.1088/0741-3335/42/4/303 |
Electronic ISSN |
1361-6587 |
Print ISSN |
0741-3335 |
Журнал |
Plasma Physics and Controlled Fusion |
Том |
42 |
Первая страница |
401 |
Последняя страница |
413 |
Аффилиация |
Shinji Nakazawa; National Institute for Fusion Science, Oroshi 322-6, Toki, Gifu 509-5292, Japan |
Аффилиация |
Noriyoshi Nakajima; National Institute for Fusion Science, Oroshi 322-6, Toki, Gifu 509-5292, Japan |
Аффилиация |
Masao Okamoto; National Institute for Fusion Science, Oroshi 322-6, Toki, Gifu 509-5292, Japan |
Аффилиация |
Nobuyoshi Ohyabu; National Institute for Fusion Science, Oroshi 322-6, Toki, Gifu 509-5292, Japan |
Выпуск |
4 |