Three-Dimensional Numerical Analysis Of Ion Diamagnetic Effects On Interchange Mode In Heliotron Plasmas

Timothee Nicolas; Katsuji Ichiguchi; Masahiko Sato; Yasushi Todo; Yasuhiro Suzuki; Akihiro Ishizawa; Satoru Sakakibara

doi:10.1585/pfr.10.3403018

Three-Dimensional Numerical Analysis Of Ion Diamagnetic Effects On Interchange Mode In Heliotron Plasmas

Timothee Nicolas
, Katsuji Ichiguchi
, Masahiko Sato
, Yasushi Todo
, Yasuhiro Suzuki
, Akihiro Ishizawa
, Satoru Sakakibara

National Institute for Fusion Science
The Graduate University for Advanced Studies

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

Abstract

The influence of the ion diamagnetic flow on the resistive interchange mode including dissipation in the Large Helical Device (LHD) plasmas is investigated with three-dimensional (3D) magnetohydrodynamic (MHD) codes. The contribution on the interchange mode stability depends on the difference between the ideal growth rate I and the single fluid growth rate including resistivity and dissipation D. When D is close to I, the ion diamagnetic effects are stabilizing. In this case the stabilization can be approximated by an analytic formula by analogy with the case without dissipation. When D is far from I the ion diamagnetic effects are destabilizing.

Original language	English
Pages (from-to)	1-6
Number of pages	6
Journal	Plasma and Fusion Research
Volume	10
DOIs	https://doi.org/10.1585/pfr.10.3403018
Publication status	Published - 1 Jan 2015
Externally published	Yes

Keywords

Large Helical Device
flow
heliotron
interchange mode
magnetohydrodynamics
two-fluid effect

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10.1585/pfr.10.3403018

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title = "Three-Dimensional Numerical Analysis Of Ion Diamagnetic Effects On Interchange Mode In Heliotron Plasmas",

abstract = "The influence of the ion diamagnetic flow on the resistive interchange mode including dissipation in the Large Helical Device (LHD) plasmas is investigated with three-dimensional (3D) magnetohydrodynamic (MHD) codes. The contribution on the interchange mode stability depends on the difference between the ideal growth rate I and the single fluid growth rate including resistivity and dissipation D. When D is close to I, the ion diamagnetic effects are stabilizing. In this case the stabilization can be approximated by an analytic formula by analogy with the case without dissipation. When D is far from I the ion diamagnetic effects are destabilizing.",

keywords = "Large Helical Device, flow, heliotron, interchange mode, magnetohydrodynamics, two-fluid effect",

author = "Timothee Nicolas and Katsuji Ichiguchi and Masahiko Sato and Yasushi Todo and Yasuhiro Suzuki and Akihiro Ishizawa and Satoru Sakakibara",

note = "Publisher Copyright: {\textcopyright} 2015 The Japan Society of Plasma Science and Nuclear Fusion Research",

year = "2015",

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doi = "10.1585/pfr.10.3403018",

language = "English",

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TY - JOUR

T1 - Three-Dimensional Numerical Analysis Of Ion Diamagnetic Effects On Interchange Mode In Heliotron Plasmas

AU - Nicolas, Timothee

AU - Ichiguchi, Katsuji

AU - Sato, Masahiko

AU - Todo, Yasushi

AU - Suzuki, Yasuhiro

AU - Ishizawa, Akihiro

AU - Sakakibara, Satoru

PY - 2015/1/1

Y1 - 2015/1/1

N2 - The influence of the ion diamagnetic flow on the resistive interchange mode including dissipation in the Large Helical Device (LHD) plasmas is investigated with three-dimensional (3D) magnetohydrodynamic (MHD) codes. The contribution on the interchange mode stability depends on the difference between the ideal growth rate I and the single fluid growth rate including resistivity and dissipation D. When D is close to I, the ion diamagnetic effects are stabilizing. In this case the stabilization can be approximated by an analytic formula by analogy with the case without dissipation. When D is far from I the ion diamagnetic effects are destabilizing.

AB - The influence of the ion diamagnetic flow on the resistive interchange mode including dissipation in the Large Helical Device (LHD) plasmas is investigated with three-dimensional (3D) magnetohydrodynamic (MHD) codes. The contribution on the interchange mode stability depends on the difference between the ideal growth rate I and the single fluid growth rate including resistivity and dissipation D. When D is close to I, the ion diamagnetic effects are stabilizing. In this case the stabilization can be approximated by an analytic formula by analogy with the case without dissipation. When D is far from I the ion diamagnetic effects are destabilizing.

KW - Large Helical Device

KW - flow

KW - heliotron

KW - interchange mode

KW - magnetohydrodynamics

KW - two-fluid effect

UR - https://www.scopus.com/pages/publications/85108632611

U2 - 10.1585/pfr.10.3403018

DO - 10.1585/pfr.10.3403018

M3 - Article

AN - SCOPUS:85108632611

SN - 1880-6821

VL - 10

SP - 1

EP - 6

JO - Plasma and Fusion Research

JF - Plasma and Fusion Research

ER -

Three-Dimensional Numerical Analysis Of Ion Diamagnetic Effects On Interchange Mode In Heliotron Plasmas

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