Transport modelling of TEXTOR-DED laminar zone

被引:10
作者
Eich, T [1 ]
Reiser, D [1 ]
Finken, KH [1 ]
机构
[1] Forschungszentrum Julich, Inst Plasmaphys, EURATOM Assoc,Trilateral Euregio Cluster, D-52425 Julich, Germany
关键词
ergodic divertor; TEXTOR-DED; plasma edge; edge modelling;
D O I
10.1016/S0022-3115(00)00649-8
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In the case of a strong ergodisation of the plasma edge of TEXTOR-DED, the edge magnetic field forms an extended laminar zone, which is established by magnetic field lines with short connection lengths (open ergodic system). In the laminar zone the parallel transport can compete with the cross-field transport and the situation is similar to that in a regular divertor. For an analysis of the generic effects of the laminar zone on the plasma transport, the LUPUS code is developed taking flux tubes with short connection lengths into account. The ergodic zone with rather high connection lengths is described by enhanced perpendicular diffusion coefficients. As important results, which differ significantly from common SOL's, the expected power load and the flow pattern to the plasma facing components are presented. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:849 / 853
页数:5
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