Plasma flow due to a loss-cone distribution centred around the outboard edge in DIII-D

被引：33

作者：

deGrassie, J. S. ^{[1
]}

Mueller, S. H. ^{[2
]}

Boedo, J. A. ^{[2
]}

机构：

[1] Gen Atom Co, San Diego, CA 92186 USA

[2] Univ Calif San Diego, Energy Res Ctr, La Jolla, CA 92093 USA

来源：

NUCLEAR FUSION | 2012年 / 52卷 / 01期

关键词：

TOKAMAKS; TRANSPORT; SEPARATRIX; ROTATION;

D O I：

10.1088/0029-5515/52/1/013010

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：

Recent Mach probe measurements of the bulk ion toroidal velocity near the last closed flux surface in DIII-D (Muller et al 2011 Phys. Rev. Lett. 106 115001) are consistent with the existence of a loss-cone distribution in velocity space, as described previously (deGrassie et al 2009 Nucl. Fusion 49 085020), predicting a co-I-p directed velocity localized to the edge. The former model has been extended into the scrape-off layer and takes into account limiting surfaces, and is also extended to include the effect of a uniform radial electric field with magnitude and sign relevant for measurements in the edge of DIII-D H-mode conditions. These added effects modify the details but do not wash out the basic model-computed velocity profile.

引用

页数：12

共 26 条

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