Structure formation in parallel ion flow and density profiles by cross-ferroic turbulent transport in linear magnetized plasma

T. Kobayashi; Inagaki Shigeru; Y. Kosuga; Makoto Sasaki; Y. Nagashima; T. Yamada; H. Arakawa; N. Kasuya; A. Fujisawa; Sanae Itoh; K. Itoh

doi:10.1063/1.4965915

Structure formation in parallel ion flow and density profiles by cross-ferroic turbulent transport in linear magnetized plasma

T. Kobayashi, Inagaki Shigeru, Y. Kosuga, Makoto Sasaki, Y. Nagashima, T. Yamada, H. Arakawa, N. Kasuya, A. Fujisawa, Sanae Itoh, K. Itoh

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

17 Citations (Scopus)

Abstract

In this paper, we show the direct observation of the parallel flow structure and the parallel Reynolds stress in a linear magnetized plasma, in which a cross-ferroic turbulence system is formed [Inagaki et al., Sci. Rep. 6, 22189 (2016)]. It is shown that the parallel Reynolds stress induced by the density gradient driven drift wave is the source of the parallel flow structure. Moreover, the generated parallel flow shear by the parallel Reynolds stress is found to drive the parallel flow shear driven instability D'Angelo mode, which coexists with the original drift wave. The excited D'Angelo mode induces the inward particle flux, which seems to help in maintaining the peaked density profile.

Original language	English
Article number	102311
Journal	Physics of Plasmas
Volume	23
Issue number	10
DOIs	https://doi.org/10.1063/1.4965915
Publication status	Published - Oct 1 2016

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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10.1063/1.4965915

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abstract = "In this paper, we show the direct observation of the parallel flow structure and the parallel Reynolds stress in a linear magnetized plasma, in which a cross-ferroic turbulence system is formed [Inagaki et al., Sci. Rep. 6, 22189 (2016)]. It is shown that the parallel Reynolds stress induced by the density gradient driven drift wave is the source of the parallel flow structure. Moreover, the generated parallel flow shear by the parallel Reynolds stress is found to drive the parallel flow shear driven instability D'Angelo mode, which coexists with the original drift wave. The excited D'Angelo mode induces the inward particle flux, which seems to help in maintaining the peaked density profile.",

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T1 - Structure formation in parallel ion flow and density profiles by cross-ferroic turbulent transport in linear magnetized plasma

AU - Kobayashi, T.

AU - Shigeru, Inagaki

AU - Kosuga, Y.

AU - Sasaki, Makoto

AU - Nagashima, Y.

AU - Yamada, T.

AU - Arakawa, H.

AU - Kasuya, N.

AU - Fujisawa, A.

AU - Itoh, Sanae

AU - Itoh, K.

PY - 2016/10/1

Y1 - 2016/10/1

N2 - In this paper, we show the direct observation of the parallel flow structure and the parallel Reynolds stress in a linear magnetized plasma, in which a cross-ferroic turbulence system is formed [Inagaki et al., Sci. Rep. 6, 22189 (2016)]. It is shown that the parallel Reynolds stress induced by the density gradient driven drift wave is the source of the parallel flow structure. Moreover, the generated parallel flow shear by the parallel Reynolds stress is found to drive the parallel flow shear driven instability D'Angelo mode, which coexists with the original drift wave. The excited D'Angelo mode induces the inward particle flux, which seems to help in maintaining the peaked density profile.

AB - In this paper, we show the direct observation of the parallel flow structure and the parallel Reynolds stress in a linear magnetized plasma, in which a cross-ferroic turbulence system is formed [Inagaki et al., Sci. Rep. 6, 22189 (2016)]. It is shown that the parallel Reynolds stress induced by the density gradient driven drift wave is the source of the parallel flow structure. Moreover, the generated parallel flow shear by the parallel Reynolds stress is found to drive the parallel flow shear driven instability D'Angelo mode, which coexists with the original drift wave. The excited D'Angelo mode induces the inward particle flux, which seems to help in maintaining the peaked density profile.

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Structure formation in parallel ion flow and density profiles by cross-ferroic turbulent transport in linear magnetized plasma

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