The effects of field reversal on the W7-AS island divertor at low densities

被引：20

作者：

Feng, Y ^{[1
]}

Herre, G ^{[1
]}

Grigull, P ^{[1
]}

Sardei, F ^{[1
]}

机构：

[1] Max Planck Inst Plasmaphys, EURATOM Assoc, D-85748 Garching, Germany

来源：

PLASMA PHYSICS AND CONTROLLED FUSION | 1998年 / 40卷 / 03期

关键词：

D O I：

10.1088/0741-3335/40/3/003

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

For the W7-AS divertor configuration with the present inboard plates deeply cutting the iota = 5/9 magnetic islands, asymmetries in the distributions of density, particle and energy flows in the island scrape-off layer have been observed. The asymmetries are reversed as the B-field is reversed. After examining the classical drifts, we conclude that the asymmetries are driven by E-r x B drifts arising from a radial temperature gradient in the islands. The effects of this drift are investigated by a simple one-dimensional model and fully three-dimensional simulations with the EMC3 code. Calculations are compared to measurements.

引用

页码：371 / 380

页数：10

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