Thermal transport effects on drift-tearing mode

Seiya Nishimura; Masatoshi Yagi; Sanae I. Itoh; Masahumi Azumi; Kimitaka Itoh

doi:10.1143/JPSJ.76.064501

Thermal transport effects on drift-tearing mode

Seiya Nishimura, Masatoshi Yagi, Sanae I. Itoh, Masahumi Azumi, Kimitaka Itoh

Division of Nuclear Fusion Dynamics

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

6 Citations (Scopus)

Abstract

The parameter dependence of the linear growth rate of collisional drift-tearing mode is investigated numerically and analytically using reduced two-fluid equations. Especially, the effect of parallel thermal transport on the growth rate is clarified. It is newly found that the thermal transport parallel to the ambient magnetic field line destabilizes the collisional drift-tearing mode and the diamagnetic drift frequency acts as an instability source in some parameter regime. With large parallel thermal transport coefficient, the collisional drift-tearing mode could be unstable even if the classical tearing mode is stable.

Original language	English
Article number	064501
Journal	journal of the physical society of japan
Volume	76
Issue number	6
DOIs	https://doi.org/10.1143/JPSJ.76.064501
Publication status	Published - Jun 2007

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1143/JPSJ.76.064501

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title = "Thermal transport effects on drift-tearing mode",

abstract = "The parameter dependence of the linear growth rate of collisional drift-tearing mode is investigated numerically and analytically using reduced two-fluid equations. Especially, the effect of parallel thermal transport on the growth rate is clarified. It is newly found that the thermal transport parallel to the ambient magnetic field line destabilizes the collisional drift-tearing mode and the diamagnetic drift frequency acts as an instability source in some parameter regime. With large parallel thermal transport coefficient, the collisional drift-tearing mode could be unstable even if the classical tearing mode is stable.",

author = "Seiya Nishimura and Masatoshi Yagi and Itoh, {Sanae I.} and Masahumi Azumi and Kimitaka Itoh",

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T1 - Thermal transport effects on drift-tearing mode

AU - Nishimura, Seiya

AU - Yagi, Masatoshi

AU - Itoh, Sanae I.

AU - Azumi, Masahumi

AU - Itoh, Kimitaka

PY - 2007/6

Y1 - 2007/6

N2 - The parameter dependence of the linear growth rate of collisional drift-tearing mode is investigated numerically and analytically using reduced two-fluid equations. Especially, the effect of parallel thermal transport on the growth rate is clarified. It is newly found that the thermal transport parallel to the ambient magnetic field line destabilizes the collisional drift-tearing mode and the diamagnetic drift frequency acts as an instability source in some parameter regime. With large parallel thermal transport coefficient, the collisional drift-tearing mode could be unstable even if the classical tearing mode is stable.

AB - The parameter dependence of the linear growth rate of collisional drift-tearing mode is investigated numerically and analytically using reduced two-fluid equations. Especially, the effect of parallel thermal transport on the growth rate is clarified. It is newly found that the thermal transport parallel to the ambient magnetic field line destabilizes the collisional drift-tearing mode and the diamagnetic drift frequency acts as an instability source in some parameter regime. With large parallel thermal transport coefficient, the collisional drift-tearing mode could be unstable even if the classical tearing mode is stable.

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JO - journal of the physical society of japan

JF - journal of the physical society of japan

IS - 6

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ER -

Thermal transport effects on drift-tearing mode

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