On the p scaling of intrinsic rotation in C-Mod plasmas with edge transport barriers

J. E. Rice, J. W. Hughes, P. H. Diamond, N. Cao, M. A. Chilenski, A. E. Hubbard, J. H. Irby, Y. Kosuga, Y. Lin, I. W. Metcalf, M. L. Reinke, E. A. Tolman, M. M. Victora, S. M. Wolfe, S. J. Wukitch

研究成果: Contribution to journalArticle査読

4 被引用数 (Scopus)

抄録

Changes in the core intrinsic toroidal rotation velocity following L- to H- and L- to I-mode transitions have been investigated in Alcator C-Mod tokamak plasmas. The magnitude of the co-current rotation increments is found to increase with the pedestal temperature gradient and q95, and to decrease with toroidal magnetic field. These results are captured quantitatively by a model of fluctuation entropy balance which gives the Mach number Mi ≃= -rfpag∗/2Ls/LT∇Tq95/BT in an ITG turbulence dominant regime. The agreement between experiment and theory gives confidence for extrapolation to future devices in similar operational regimes. Core thermal Mach numbers of ∼0.07 and ∼0.2 are expected for ITER and ARC, respectively.

本文言語英語
論文番号116004
ジャーナルNuclear Fusion
57
11
DOI
出版ステータス出版済み - 7 28 2017

All Science Journal Classification (ASJC) codes

  • 核物理学および高エネルギー物理学
  • 凝縮系物理学

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