Отправить статью по E-mail Nonlinear damping of zonal flows
- Авторы: Koshkarov O.1, Smolyakov A.I.1,2, Mendonca J.T.3
-
Учреждения:
- Department of Physics and Engineering Physics
- National Research Centre Kurchatov Institute
- Instituto de Plasmas e Fusão Nuclear
- Выпуск: Том 42, № 8 (2016)
- Страницы: 769-772
- Раздел: Nonlinear Phenomena
- URL: https://journals.rcsi.science/1063-780X/article/view/185910
- DOI: https://doi.org/10.1134/S1063780X16080067
- ID: 185910
Цитировать
Открытый доступ
Доступ предоставлен
Только для подписчиков
Аннотация
The modulatonal instability theory for the generation of large-scale (zonal) modes by drift modes has been extended to the second order including the effects of finite amplitude zonal flows, ϕq. The nonlinear (second-order) sidebands are included in the perturbative expansion to derive the nonlinear equation for the evolution of ϕq. It is shown that effects of finite ϕq reduce the growth rate of zonal flow with a possibility of oscillatory regimes at a later stage.
Об авторах
O. Koshkarov
Department of Physics and Engineering Physics
Автор, ответственный за переписку.
Email: koshkarov.alexandr@usask.ca
Канада, Saskatoon, SK, S7N 5E2
A. Smolyakov
Department of Physics and Engineering Physics; National Research Centre Kurchatov Institute
Email: koshkarov.alexandr@usask.ca
Канада, Saskatoon, SK, S7N 5E2; pl. Akademika Kurchatova 1, Moscow, 123182
J. Mendonca
Instituto de Plasmas e Fusão Nuclear
Email: koshkarov.alexandr@usask.ca
Португалия, Lisboa, 1049-001
Дополнительные файлы
