Low-frequency zonal flow eigen-structures in tokamak plasmas

The nonlocal eigenmode analysis of low-frequency zonal flows (ZFs) in toroidally rotating tokamak plasmas is performed in the framework of the reduced one-fluid ideal magnetohydrodynamic model. It is shown that for typical profiles of plasma parameters toroidal plasma rotation results in the global ZF formation on the periphery of plasma column. For some types of equilibria these ZFs are aperiodically unstable that leads to the excitation of the differential plasma rotation at the tokamak plasma edge. © 2022 IAEA, Vienna.

Авторы
Журнал
Издательство
IOP Publishing Ltd
Номер выпуска
6
Язык
Английский
Статус
Опубликовано
Номер
066002
Том
62
Год
2022
Организации
  • 1 State Atomic Energy Corporation ROSATOM, 24 Bolshaya Ordynka St., Moscow, 119017, Russian Federation
  • 2 NRC Kurchatov Institute, 1 Kurchatov Sq., Moscow, 123182, Russian Federation
  • 3 Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow, 117198, Russian Federation
  • 4 University of Saskatchewan, 116 Science Place, Saskatoon, SK S7N 5E2, Canada
Ключевые слова
eigenmode; geodesic acoustic mode; MHD; tokamak; toroidal rotation; zonal flow
Дата создания
06.07.2022
Дата изменения
06.07.2022
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/83593/
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