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

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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.

Original languageEnglish
Article number102311
JournalPhysics of Plasmas
Volume23
Issue number10
DOIs
Publication statusPublished - Oct 1 2016

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parallel flow
Reynolds stress
profiles
ions
shear
flux (rate)
turbulence
gradients

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

Cite this

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title = "Structure formation in parallel ion flow and density profiles by cross-ferroic turbulent transport in linear magnetized plasma",
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.",
author = "T. Kobayashi and Inagaki Shigeru and Yusuke Kosuga and Makoto Sasaki and Yoshihiko Nagashima and Takuma Yamada and H. Arakawa and Naohiro Kasuya and akihide fujisawa and Sanae Itoh and K. Itoh",
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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, Yusuke

AU - Sasaki, Makoto

AU - Nagashima, Yoshihiko

AU - Yamada, Takuma

AU - Arakawa, H.

AU - Kasuya, Naohiro

AU - fujisawa, akihide

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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