Transport of Parallel Momentum Induced by Current-Symmetry Breaking in Toroidal Plasmas

被引：108

作者：

Camenen, Y. ^{[1
]}

Peeters, A. G. ^{[1
]}

Angioni, C. ^{[2
]}

Casson, F. J. ^{[1
]}

Hornsby, W. A. ^{[1
]}

Snodin, A. P. ^{[1
]}

Strintzi, D. ^{[3
]}

机构：

[1] Univ Warwick, Ctr Fus Space & Astrophys, Dept Phys, Coventry CV4 7AL, W Midlands, England

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

[3] Natl Tech Univ Athens, EURATOM Assoc, GR-15773 Athens, Greece

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 12期

基金：

英国工程与自然科学研究理事会;

关键词：

RADIAL ELECTRIC-FIELD; C-MOD PLASMAS; OHMIC H-MODE; DIII-D; TCV TOKAMAK; ROTATION; DISCHARGES; TURBULENCE; STABILIZATION; INJECTION;

D O I：

10.1103/PhysRevLett.102.125001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The symmetry of a physical system strongly impacts on its properties. In toroidal plasmas, the symmetry along a magnetic field line usually constrains the radial flux of parallel momentum to zero in the absence of background flows. By breaking the up-down symmetry of the toroidal currents, this constraint can be relaxed. The parallel asymmetry in the magnetic configuration then leads to an incomplete cancellation of the turbulent momentum flux across a flux surface. The magnitude of the subsequent toroidal rotation increases with the up-down asymmetry and its sign depends on the direction of the toroidal magnetic field and plasma current. Such a mechanism offers new insights in the interpretation and control of the intrinsic toroidal rotation in present day experiments.

引用

页数：4

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