Scaling of Spontaneous Rotation with Temperature and Plasma Current in Tokamaks

被引：28

作者：

Parra, F. I. ^{[1
,2
]}

Nave, M. F. F. ^{[1
,3
]}

Schekochihin, A. A. ^{[1
]}

Giroud, C. ^{[4
]}

de Grassie, J. S. ^{[5
]}

Severo, J. H. F. ^{[6
]}

de Vries, P. ^{[7
]}

Zastrow, K. -D. ^{[4
]}

机构：

[1] Univ Oxford, Rudolf Peierls Ctr Theoret Phys, Oxford OX1 3NP, England

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

[3] Univ Tecn Lisbon, Associacao EURATOM IST, Inst Plasmas & Fusao Nucl, Inst Super Tecn, Lisbon, Portugal

[4] Culham Sci Ctr, Euratom CCFE Fus Assoc, Abingdon OX14 3DB, Oxon, England

[5] Gen Atom Co, San Diego, CA USA

[6] Univ Sao Paulo, Inst Phys, BR-05508 Sao Paulo, Brazil

[7] EURATOM, FOM Inst Plasma Phys, Nieuwegein, Netherlands

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 09期

基金：

英国工程与自然科学研究理事会;

关键词：

TCV TOKAMAK; TRANSPORT; MODE; TURBULENCE;

D O I：

10.1103/PhysRevLett.108.095001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using theoretical arguments, a simple scaling law for the size of the intrinsic rotation observed in tokamaks in the absence of a momentum injection is found: The velocity generated in the core of a tokamak must be proportional to the ion temperature difference in the core divided by the plasma current, independent of the size of the device. The constant of proportionality is of the order of 10 km . s(-1) . MA . keV(-1). When the intrinsic rotation profile is hollow, i.e., it is countercurrent in the core of the tokamak and cocurrent in the edge, the scaling law presented in this Letter fits the data remarkably well for several tokamaks of vastly different size and heated by different mechanisms.

引用

页数：5

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