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

• Kobayashi, Tatsuya

• ITOH, Kimitaka

• Kamiya, K.

• ITOH, Sanae -I.

• MIURA, Y.

• Nagashima, Y.

• FUJISAWA, Akihide

• INAGAKI, Shigeru

• IDA, Katsumi

• Hoshino, K.

抄録

0000-0001-5669-1937

In this paper, we elaborate the electric field 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 field 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 field. 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.

収録刊行物

• Nuclear Fusion

  Nuclear Fusion 57 (7), 072005-, 2017-03-10

  IOP Publishing

キーワード

• L–H transition
• radial electric field
• radial current

詳細情報

• CRID: 1050290473061034496
• NII論文ID: 120007176981
• NII書誌ID: AA00759871
• ISSN: 00295515
• ISSN: 17414326
• DOI: 10.1088/1741-4326/aa5d03
• HANDLE: 10655/00012746
• Web Site: https://nifs-repository.repo.nii.ac.jp/records/10769
• Web Site: http://stacks.iop.org/0029-5515/57/i=7/a=072005/pdf
• Web Site: http://stacks.iop.org/0029-5515/57/i=7/a=072005?key=crossref.a5fa901c0e39abbfb2c4723992cfc0c8
• 本文言語コード: en
• 資料種別: journal article
• データソース種別:
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