3D effects of edge magnetic field configuration on divertor/scrape-off layer transport and optimization possibilities for a future reactor

被引：37

作者：

Kobayashi, M. ^{[1
]}

Xu, Y. ^{[2
]}

Ida, K. ^{[1
]}

Corre, Y. ^{[3
]}

Feng, Y. ^{[4
]}

Schmitz, O. ^{[5
]}

Frerichs, H. ^{[5
]}

Tabares, F. L. ^{[6
]}

Evans, T. E. ^{[7
]}

Coenen, J. W. ^{[8
]}

Liang, Y. ^{[8
]}

Bader, A. ^{[5
]}

Itoh, K. ^{[1
]}

Yamada, H. ^{[1
]}

Ghendrih, Ph. ^{[3
]}

Ciraolo, G. ^{[3
]}

Tafalla, D. ^{[6
]}

Lopez-Fraguas, A. ^{[6
]}

Guo, H. Y. ^{[7
,9
]}

Cui, Z. Y. ^{[2
]}

Reiter, D. ^{[8
]}

Asakura, N. ^{[10
]}

Wenzel, U. ^{[4
]}

Morita, S. ^{[1
]}

Ohno, N. ^{[11
]}

Peterson, B. J. ^{[1
]}

Masuzaki, S. ^{[1
]}

机构：

[1] Natl Inst Nat Sci, Natl Inst Fus Sci, Toki, Gifu 5095292, Japan

[2] Southwestern Inst Phys, Chengdu 610041, Peoples R China

[3] CEA Cadarache ST Paul Lez Durance, IRFM, St Paul Les Durance, France

[4] Max Planck Inst Plasma Phys, D-17491 Greifswald, Germany

[5] Univ Wisconsin, Madison, WI 53706 USA

[6] CIEMAT, Lab Nacl Fus, E-28040 Madrid, Spain

[7] Gen Atom, San Diego, CA 92186 USA

[8] Forschungszentrum Julich, Inst Energie & Klimaforsch Plasmaphys, D-52425 Julich, Germany

[9] Chinese Acad Sci, Inst Plasma Phys, Hefei, Peoples R China

[10] Japan Atom Energy Agcy, Aomori 0393212, Japan

[11] Nagoya Univ, Nagoya, Aichi 4648603, Japan

来源：

NUCLEAR FUSION | 2015年 / 55卷 / 10期

关键词：

3D effects; divertor transport; helical devices; tokamaks; magnetic perturbation; DYNAMIC ERGODIC DIVERTOR; IMPURITY BEHAVIOR; PLASMA EDGE; NEOCLASSICAL TRANSPORT; STOCHASTIC BOUNDARIES; ISLAND DIVERTORS; MONTE-CARLO; TOKAMAK; PHYSICS; TURBULENCE;

D O I：

10.1088/0029-5515/55/10/104021

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：

This paper assesses the three-dimensional (3D) effects of the edge magnetic field structure on divertor/scrape-off layer transport, based on an inter-machine comparison of experimental data and on the recent progress of 3D edge transport simulation. The 3D effects are elucidated as a consequence of competition between transports parallel (parallel to) and perpendicular (perpendicular to) to the magnetic field, in open field lines cut by divertor plates, or in magnetic islands. The competition has strong impacts on divertor functions, such as determination of the divertor density regime, impurity screening and detachment control. The effects of magnetic perturbation on the edge electric field and turbulent transport are also discussed. Parameterization to measure the 3D effects on the edge transport is attempted for the individual divertor functions. Based on the suggested key parameters, an operation domain of the 3D divertor configuration is discussed for future devices.

引用

页数：22

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