Publication:
Impact of divertor plasma parameters on characteristics of current-convective turbulence under DIII-D-like detached conditions

Файлы
W2994482443.pdf(2.51 MB)
Дата
2019
Авторы
Wang, H. Q.
Krasheninnikov, S. I.
Stepanenko, A. A.
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Научные группы
Организационные подразделения
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Организационная единица
Институт лазерных и плазменных технологий
Стратегическая цель Института ЛаПлаз – стать ведущей научной школой и ядром развития инноваций по лазерным, плазменным, радиационным и ускорительным технологиям, с уникальными образовательными программами, востребованными на российском и мировом рынке образовательных услуг.
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Аннотация
© 2019 Author(s).Recent observations of turbulence in plasma of a DIII-D inner divertor revealed the formation of poloidally localized fluctuations with frequencies in the low-kilohertz range, when the machine was operating in the fluctuating state of detachment. This phenomenon can be related to the onset of the current-convective instability (CCI). In this contribution, we use the basic physical model of the instability to simulate the saturated current-convective turbulence under the DIII-D-like detached conditions. Parameter scans of turbulence characteristics are performed. The spatial and temporal spectra of fluctuations are obtained and compared with the available experimental data. It is demonstrated that simulations are able to qualitatively reproduce most of the distinct features of turbulence found in the experiments, indicating that the CCI can be a plausible mechanism responsible for plasma activity recently observed in DIII-D.
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Цитирование
Wang, H. Q. Impact of divertor plasma parameters on characteristics of current-convective turbulence under DIII-D-like detached conditions / Wang, H.Q., Krasheninnikov, S.I., Stepanenko, A.A. // Physics of Plasmas. - 2019. - 26. - № 12. - 10.1063/1.5123388
URI
https://www.doi.org/10.1063/1.5123388
 https://www.scopus.com/record/display.uri?eid=2-s2.0-85076369358&origin=resultslist
 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000505578200054
 https://openrepository.mephi.ru/handle/123456789/19000
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