Plasma and Fusion Research

Volume 3, S1019 (2008)

Regular Articles

Scaling Laws of Intermittent Plasma Turbulence in Edge of Fusion Devices
Viacheslav P. BUDAEV1,2), Suguru MASUZAKI2), Tomohiro MORISAKI2), Noriyasu OHNO3), Nobuyuki ASAKURA4), Shuichi TAKAMURA5), Hiroshi YAMADA2) and Akio KOMORI2)
1)
Nuclear Fusion Institute, RRC Kurchatov Institute, 123182, Kurchatov Sq.1, Moscow, Russia
2)
National Institute for Fusion Science, Oroshi 322-6, Toki, Gifu 509-5292, Japan
3)
Eco Topia Science Institute, Nagoya University, Nagoya 464-8603, Japan
4)
JAEA, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan.
5)
Faculty of Engineering, Aichi Institute of Technology , 1247 Yachigusa, Yagusa-cho, Toyota 470-0392, Japan
(Received 31 October 2007 / Accepted 15 February 2008 / Published 4 August 2008)

Abstract

The high-order structure functions have been analyzed to characterize the edge plasma intermittency in fusion devices. The scaling properties of edge turbulence have shown a strong deviation from a prediction of the Kolmogorov's K41 model. The turbulent fluctuations demonstrate a generalized scale invariance and log-Poisson statistics.

Keywords

edge plasma turbulence, intermittency, log-Poisson model, extended self-similarity, multifractal statistics

DOI: 10.1585/pfr.3.S1019

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References

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This paper may be cited as follows:

Viacheslav P. BUDAEV, Suguru MASUZAKI, Tomohiro MORISAKI, Noriyasu OHNO, Nobuyuki ASAKURA, Shuichi TAKAMURA, Hiroshi YAMADA and Akio KOMORI, Plasma Fusion Res. 3, S1019 (2008).