Localized recycling as a trigger of MARFE

被引:49
作者
Tokar, MZ
Rapp, J
Reiser, D
Samm, U
Schüller, FC
Sergienko, G
de Vries, PC
机构
[1] KFA, EURATOM Assoc, Forschungszentrum Julich Gmbh, Inst Plasmaphys, D-53425 Julich, Germany
[2] EURATOM, FOM, Inst Plasmafys Rijnhuizen, NL-3430 BE Nieuwegein, Netherlands
[3] Assoc IVTAN, Inst High Temp, Moscow, Russia
关键词
2D fluid model; MARFE;
D O I
10.1016/S0022-3115(98)00680-1
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
An analytical model taking into account the plasma cooling due to localized hydrogen recycling is proposed to interpret the conditions of the MARFE onset above a critical plasma density in TEXTOR-94. Results of numerical modeling confirm that under conditions of a good plasma contact with the inner wall this mechanism of the MARFE triggering is more important than the usually considered cooling instability on impurity radiation. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:958 / 962
页数:5
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