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Oct 13 – 18, 2014
Hotel Park Inn Pribaltiyskaya
Europe/Moscow timezone

Dynamic Method to Study Turbulence and Turbulence Transport

Oct 15, 2014, 10:45 AM
20m
Blue 1-5 (Hotel Park Inn Pribaltiyskaya)

Blue 1-5

Hotel Park Inn Pribaltiyskaya

Saint Petersburg, Russian Federation

Speaker

Mr Shigeru Inagaki (Japan)

Description

Here we developed research methods of plasma turbulence transport associated with the non-local features. The ECH modulation experiment and the higher harmonic analysis of the heat wave indicated: (i) propagation of the change of Te at the time of switch-off/on of ECH power is about 5 times faster than that of perturbation itself, (ii) propagation of the higher (7th) harmonic of the Te perturbation is 5 times faster than prediction by the diffusive model. New bi-spectral analysis of fluctuations demonstrated a non-linear coupling of micro-fluctuations at different radial locations. These results are beneficial for control of plasma dynamics in future fusion reactors.
Paper Number EX/2-1
Country or International Organisation Japan

Primary author

Mr Shigeru Inagaki (Japan)

Co-authors

Prof. Akihide Fujisawa (Research institute for Applied Mechanics, Kyushu University) Prof. Akio Komori (National Institute for Fusion Science) Dr Hayato Tsuchiya (National Institute for Fusion Science) Prof. Hiroshi Yamada (National Institute for Fusion Science) Prof. Katsumi Ida (National Institute for Fusion Science) Dr Kenji Tanaka (National Institute for Fusion Science) Dr Kensaku Kamiya (Japan Atomic Energy Agency) Prof. Kimitaka Itoh (NIFS) Dr Makoto Sasaki (research institute for Applied Mechanics, Kyushu University) Dr Naohiro Kasuya (Kyushu University) Dr Naoki Tamura (National Institute for Fusion Science) Prof. Sanae Itoh (Research Institute for Applied Mechanics, Kyushu University) Prof. Shin Kubo (National Institute for Fusion Science) Prof. Takashi Shimozuma (National Institute for Fusion Science) Mr Tatsuya Kobayashi (Interdisciplinary Graduate School of Engineering Sciences, Kyushu University) Dr Tokihiko Tokuzawa (National Institute for Fusion Science) Prof. Yoshio Nagayama (National Institute for Fusion Science) Dr Yusuke Kosuga (Institute for Advanced Study, Kyushu University)

Presentation materials