Inter-machine comparison of intrinsic toroidal rotation in tokamaks

被引：269

作者：

Rice, J. E. ^{[1
]}

Ince-Cushman, A. ^{[1
]}

deGrassie, J. S. ^{[2
]}

Eriksson, L. -G. ^{[3
]}

Sakamoto, Y. ^{[4
]}

Scarabosio, A. ^{[5
]}

Bortolon, A.

Burrell, K. H. ^{[2
]}

Duval, B. P. ^{[5
]}

Fenzi-Bonizec, C. ^{[3
]}

Greenwald, M. J. ^{[1
]}

Groebner, R. J. ^{[2
]}

Hoang, G. T. ^{[3
]}

Koide, Y. ^{[4
]}

Marmar, E. S. ^{[1
]}

Pochelon, A. ^{[5
]}

Podpaly, Y. ^{[1
]}

机构：

[1] MIT, Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA

[2] Gen Atom, La Jolla, CA USA

[3] EURATOM CEA, Cadarache, France

[4] Japan Atom Energy Agcy, Naka, Ibaraki, Japan

[5] CRPP, EPFL, Lausanne, Switzerland

来源：

NUCLEAR FUSION | 2007年 / 47卷 / 11期

关键词：

D O I：

10.1088/0029-5515/47/11/025

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：

Parametric scalings of the intrinsic (spontaneous, with no external momentum input) toroidal rotation observed on a large number of tokamaks have been combined with an eye towards revealing the underlying mechanism(s) and extrapolation to future devices. The intrinsic rotation velocity has been found to increase with plasma stored energy or pressure in JET, Alcator C-Mod, Tore Supra, DIII-D, JT-60U and TCV, and to decrease with increasing plasma current in some of these cases. Use of dimensionless parameters has led to a roughly unified scaling with M-A alpha beta(N), although a variety of Mach numbers works fairly well; scalings of the intrinsic rotation velocity with normalized gyro-radius or collisionality show no correlation. Whether this suggests the predominant role of MHD phenomena such as ballooning transport over turbulent processes in driving the rotation remains an open question. For an ITER discharge with beta(N) = 2.6, an intrinsic rotation Alfven Mach number of M-A similar or equal to 0.02 may be expected from the above deduced scaling, possibly high enough to stabilize resistive wall modes without external momentum input.

引用

页码：1618 / 1624

页数：7

共 53 条

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