Intrinsic Rotation Driven by Non-Maxwellian Equilibria in Tokamak Plasmas

被引：49

作者：

Barnes, M. ^{[1
,2
]}

Parra, F. I. ^{[1
]}

Lee, J. P. ^{[1
]}

Belli, E. A. ^{[3
]}

Nave, M. F. F. ^{[4
]}

White, A. E. ^{[1
]}

机构：

[1] MIT, Plasma Sci & Fusion Ctr, Cambridge, MA 02138 USA

[2] Oak Ridge Inst Sci & Educ, Oak Ridge, TN 37831 USA

[3] Gen Atom, San Diego, CA 92168 USA

[4] Inst Plasmas & Fusao Nucl, Assoc EURATOM IST, P-1049001 Lisbon, Portugal

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 111卷 / 05期

基金：

英国工程与自然科学研究理事会;

关键词：

TOROIDAL ROTATION; TRANSPORT; TURBULENCE; MODE;

D O I：

10.1103/PhysRevLett.111.055005

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The effect of small deviations from a Maxwellian equilibrium on turbulent momentum transport in tokamak plasmas is considered. These non-Maxwellian features, arising from diamagnetic effects, introduce a strong dependence of the radial flux of cocurrent toroidal angular momentum on collisionality: As the plasma goes from nearly collisionless to weakly collisional, the flux reverses direction from radially inward to outward. This indicates a collisionality-dependent transition from peaked to hollow rotation profiles, consistent with experimental observations of intrinsic rotation.

引用

页数：5

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