Gyrokinetic particle simulation of neoclassical transport in the pedestal/scrape-off region of a tokamak plasma

被引:28
|
作者
Ku, S. [1 ]
Chang, C-S [1 ]
Adams, M. [2 ]
Cummings, J. [3 ]
Hinton, F. [4 ]
Keyes, D. [2 ]
Klasky, S. [5 ]
Lee, W. [6 ]
Lin, Z. [7 ]
Parker, S. [8 ]
机构
[1] NYU, Courant Inst Math Sci, 251 Mercer St, New York, NY 10003 USA
[2] Columbia Univ, New York, NY 10027 USA
[3] CALTECH, Pasadena, CA 91125 USA
[4] Hinton Associates, New Cumberland, PA USA
[5] Oak Ridge Natl Lab, Oak Ridge, TN USA
[6] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA
[7] Univ Calif Irvine, Irvine, CA USA
[8] Univ Colorado Boulder, Boulder, CO USA
[9] SciDAC Fus Simulat Prototype Ctr Pla Edge Simulat, Boulder, CO USA
关键词
D O I
10.1088/1742-6596/46/1/012
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
A gyrokinetic neoclassical solution for a diverted tokamak edge plasma has been obtained for the first time using the massively parallel Jaguar XT3 computer at Oak Ridge National Laboratory. The solutions show similar characteristics to the experimental observations: electric potential is positive in the scrape-off layer and negative in the H-mode layer, and the parallel rotation is positive in the scrape-off layer and at the inside boundary of the H-mode layer. However, the solution also makes a new physical discovery that there is a strong ExB convective flow in the scrape-off plasma. A general introduction to the edge simulation problem is also presented.
引用
收藏
页码:87 / 91
页数:5
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