On nonlinear evolution of Alfv́nic turbulence in low beta plasmas

Y. Nariyuki; T. Hada; K. Tsubouchi

doi:10.1063/1.3028316

On nonlinear evolution of Alfv́nic turbulence in low beta plasmas

Y. Nariyuki^*, T. Hada, K. Tsubouchi

^*Corresponding author for this work

Joint Institute of Teacher Education

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

16 Scopus citations

Abstract

Nonlinear evolution of broadband spectrum Alfv́nic turbulence is studied by using one-dimensional hybrid simulations. Numerical solutions indicate that the important characteristics in the solar wind magnetohydrodynamic (MHD) turbulence are naturally reproduced by nonlinear evolution of Alfv́nic turbulence with more realistic power spectrum than one used in the past studies. Namely, (i) the modulational instability can dissipate the magnetic energy of Alfv́nic turbulence and preserve the Alfv́nicity even in low beta plasmas. (ii) Nonlinear evolution of the Alfv́nic turbulence can induce the generation of the localized structures in the solar wind MHD turbulence.

Original language	English
Article number	114502
Journal	Physics of Plasmas
Volume	15
Issue number	11
DOIs	https://doi.org/10.1063/1.3028316
State	Published - 2008

ASJC Scopus subject areas

Condensed Matter Physics

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title = "On nonlinear evolution of Alf{\'v}nic turbulence in low beta plasmas",

abstract = "Nonlinear evolution of broadband spectrum Alf{\'v}nic turbulence is studied by using one-dimensional hybrid simulations. Numerical solutions indicate that the important characteristics in the solar wind magnetohydrodynamic (MHD) turbulence are naturally reproduced by nonlinear evolution of Alf{\'v}nic turbulence with more realistic power spectrum than one used in the past studies. Namely, (i) the modulational instability can dissipate the magnetic energy of Alf{\'v}nic turbulence and preserve the Alf{\'v}nicity even in low beta plasmas. (ii) Nonlinear evolution of the Alf{\'v}nic turbulence can induce the generation of the localized structures in the solar wind MHD turbulence.",

author = "Y. Nariyuki and T. Hada and K. Tsubouchi",

note = "Funding Information: The simulation run was performed with the KDK system of the Research Institute for Sustainable Humanosphere (RISH) at Kyoto University as a collaborative research project. This work was supported by a Grant-in-Aid for Young Scientists (Start-up) No. 20840042 from JSPS. ",

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doi = "10.1063/1.3028316",

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T1 - On nonlinear evolution of Alfv́nic turbulence in low beta plasmas

AU - Nariyuki, Y.

AU - Hada, T.

AU - Tsubouchi, K.

N1 - Funding Information: The simulation run was performed with the KDK system of the Research Institute for Sustainable Humanosphere (RISH) at Kyoto University as a collaborative research project. This work was supported by a Grant-in-Aid for Young Scientists (Start-up) No. 20840042 from JSPS.

PY - 2008

Y1 - 2008

N2 - Nonlinear evolution of broadband spectrum Alfv́nic turbulence is studied by using one-dimensional hybrid simulations. Numerical solutions indicate that the important characteristics in the solar wind magnetohydrodynamic (MHD) turbulence are naturally reproduced by nonlinear evolution of Alfv́nic turbulence with more realistic power spectrum than one used in the past studies. Namely, (i) the modulational instability can dissipate the magnetic energy of Alfv́nic turbulence and preserve the Alfv́nicity even in low beta plasmas. (ii) Nonlinear evolution of the Alfv́nic turbulence can induce the generation of the localized structures in the solar wind MHD turbulence.

AB - Nonlinear evolution of broadband spectrum Alfv́nic turbulence is studied by using one-dimensional hybrid simulations. Numerical solutions indicate that the important characteristics in the solar wind magnetohydrodynamic (MHD) turbulence are naturally reproduced by nonlinear evolution of Alfv́nic turbulence with more realistic power spectrum than one used in the past studies. Namely, (i) the modulational instability can dissipate the magnetic energy of Alfv́nic turbulence and preserve the Alfv́nicity even in low beta plasmas. (ii) Nonlinear evolution of the Alfv́nic turbulence can induce the generation of the localized structures in the solar wind MHD turbulence.

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M3 - 学術論文

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JO - Physics of Plasmas

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On nonlinear evolution of Alfv́nic turbulence in low beta plasmas

Abstract

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