Multi-field plasma sandpile model in tokamaks and applications
Multi-field plasma sandpile model in tokamaks and applications
复制标题
托卡马克多场等离子体沙堆模型及其应用
DOI：
10.1063/1.4961922
复制
发表时间：
2016-08
影响因子：
2.2
通讯作者：
许健强
中科院分区：
文献类型：
--
作者：
彭晓东;许健强
A multi-field sandpile model of tokamak plasmas is formulated for the first time to simulate the dynamic process with interaction between avalanche events on the fast/micro time-scale and diffusive transports on the slow/macro time-scale. The main characteristics of the model are that both particle and energy avalanches of sand grains are taken into account simultaneously. New redistribution rules of a sand-relaxing process are defined according to the transport properties of special turbulence which allows the uphill particle transport. Applying the model, we first simulate the steady-state plasma profile self-sustained by drift wave turbulences in the Ohmic discharge of a tokamak. A scaling law as f=aq0b+c for the relation of both center-density n(0) and electron (ion) temperatures Te(0)( Ti(0)) with the center-safety-factor q0 is found. Then interesting work about the nonlocal transport phenomenon observed in tokamak experiments proceeds. It is found that the core electron temperature increases rapidly...
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影响因子：
3.3
作者：
R. Sánchez;D. Newman;B. Carreras;R. Woodard;W. Ferenbaugh;H. R. Hicks
通讯作者：
R. Sánchez;D. Newman;B. Carreras;R. Woodard;W. Ferenbaugh;H. R. Hicks
影响因子：
2.2
作者：
C. Angioni;E. Fable;M. Greenwald;M. Maslov;A. Peeters;H. Takenaga;H. Weisen
通讯作者：
C. Angioni;E. Fable;M. Greenwald;M. Maslov;A. Peeters;H. Takenaga;H. Weisen
影响因子：
8.6
作者：
F. Sattin;M. Baiesi
通讯作者：
F. Sattin;M. Baiesi
影响因子：
8.6
作者：
Mantica, P;Galli, P;Cardozo, NJL
通讯作者：
Cardozo, NJL
影响因子：
3.3
作者：
Pan, O.;Xu, Y.;Liu, Yong
通讯作者：
Liu, Yong