Characterization of bifurcation induced by long distance correlation between heat flux and temperature gradient in toroidal plasmas

Inagaki Shigeru; N. Tamura; K. Ida; K. Tanaka; Y. Nagayama; K. Kawahata; S. Sudo; K. Itoh; Sanae Itoh; A. Komori

doi:10.1088/0741-3335/52/7/075002

Characterization of bifurcation induced by long distance correlation between heat flux and temperature gradient in toroidal plasmas

Inagaki Shigeru, N. Tamura, K. Ida, K. Tanaka, Y. Nagayama, K. Kawahata, S. Sudo, K. Itoh, Sanae Itoh, A. Komori

Division of Nuclear Fusion Dynamics

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

The role of non-locality in transport bifurcation is indicated by experiments in the Large Helical Device. A long distance correlation of the order of the plasma radius between the heat flux and temperature gradient is determined by using cross-correlation analysis. This long distance correlation induces a new transport bifurcation. A bifurcation diagram including the non-locality demonstrates that the non-local temperature rise phenomena can be explained qualitatively by the cusp catastrophe model.

Original language	English
Article number	075002
Journal	Plasma Physics and Controlled Fusion
Volume	52
Issue number	7
DOIs	https://doi.org/10.1088/0741-3335/52/7/075002
Publication status	Published - Jun 25 2010

All Science Journal Classification (ASJC) codes

Nuclear Energy and Engineering
Condensed Matter Physics

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10.1088/0741-3335/52/7/075002

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Characterization of bifurcation induced by long distance correlation between heat flux and temperature gradient in toroidal plasmas. / Shigeru, Inagaki; Tamura, N.; Ida, K.; Tanaka, K.; Nagayama, Y.; Kawahata, K.; Sudo, S.; Itoh, K.; Itoh, Sanae; Komori, A.

In: Plasma Physics and Controlled Fusion, Vol. 52, No. 7, 075002, 25.06.2010.

Research output: Contribution to journal › Article › peer-review

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AU - Shigeru, Inagaki

AU - Tamura, N.

AU - Ida, K.

AU - Tanaka, K.

AU - Nagayama, Y.

AU - Kawahata, K.

AU - Sudo, S.

AU - Itoh, K.

AU - Itoh, Sanae

AU - Komori, A.

PY - 2010/6/25

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N2 - The role of non-locality in transport bifurcation is indicated by experiments in the Large Helical Device. A long distance correlation of the order of the plasma radius between the heat flux and temperature gradient is determined by using cross-correlation analysis. This long distance correlation induces a new transport bifurcation. A bifurcation diagram including the non-locality demonstrates that the non-local temperature rise phenomena can be explained qualitatively by the cusp catastrophe model.

AB - The role of non-locality in transport bifurcation is indicated by experiments in the Large Helical Device. A long distance correlation of the order of the plasma radius between the heat flux and temperature gradient is determined by using cross-correlation analysis. This long distance correlation induces a new transport bifurcation. A bifurcation diagram including the non-locality demonstrates that the non-local temperature rise phenomena can be explained qualitatively by the cusp catastrophe model.

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Characterization of bifurcation induced by long distance correlation between heat flux and temperature gradient in toroidal plasmas

Abstract

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