Model validation for radial electric field excitation during L-H transition in JFT-2M tokamak

T. Kobayashi, K. Itoh, T. Ido, K. Kamiya, S. I. Itoh, Y. Miura, Y. Nagashima, A. Fujisawa, S. Inagaki, K. Ida, K. Hoshino

研究成果: Contribution to journalArticle査読

2 被引用数 (Scopus)

抄録

In this paper, we elaborate the electric feld excitation mechanism during the L-H transition in the JFT-2M tokamak. Using time derivative of the Poisson's equation, models of the radial electric feld excitation is examined. The sum of the loss-cone loss current and the neoclassical bulk viscosity current is found to behave as the experimentally evaluated radial current that excites the radial electric feld. The turbulent Reynolds stress only plays a minor role. The wave convection current that produces a negative current at the edge can be important to explain the ambipolar condition in the L-mode.

本文言語英語
論文番号072005
ジャーナルNuclear Fusion
57
7
DOI
出版ステータス出版済み - 3 10 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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