Three-dimensional numerical analysis of shear flow effects on MHD stability in LHD plasmas

Katsuji Ichiguchi; Yashiro Suzuki; Yasushi Todo; Masahiko Sato; Timothée Nicolas; Benjamin A. Carreras; Satoru Sakakibara; Yuki Takemura; Satoshi Ohdachi; Yoshiro Narushima

doi:10.1585/pfr.11.2403035

Three-dimensional numerical analysis of shear flow effects on MHD stability in LHD plasmas

Katsuji Ichiguchi
, Yashiro Suzuki
, Yasushi Todo
, Masahiko Sato
, Timothée Nicolas
, Benjamin A. Carreras
, Satoru Sakakibara
, Yuki Takemura
, Satoshi Ohdachi
, Yoshiro Narushima

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

Abstract

Effects of poloidal shear flow on the stability of interchange modes in a Large Helical Device (LHD) configuration are numerically studied. Three-dimensional (3D) numerical codes are utilized for the equilibrium and stability calculations. A static equilibrium is employed and a model poloidal flow as a flux function is incorporated in the initial perturbation. The results show that the initially applied flow can suppress the growth of the interchange mode if the flow is sufficiently large.

Original language	English
Article number	2403035
Journal	Plasma and Fusion Research
Volume	11
Issue number	Specialissue1
DOIs	https://doi.org/10.1585/pfr.11.2403035
Publication status	Published - 1 Jan 2016
Externally published	Yes

Keywords

3D numerical simulation
Heliotron
Interchange mode
MHD stability
Shear flow

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10.1585/pfr.11.2403035

Cite this

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title = "Three-dimensional numerical analysis of shear flow effects on MHD stability in LHD plasmas",

abstract = "Effects of poloidal shear flow on the stability of interchange modes in a Large Helical Device (LHD) configuration are numerically studied. Three-dimensional (3D) numerical codes are utilized for the equilibrium and stability calculations. A static equilibrium is employed and a model poloidal flow as a flux function is incorporated in the initial perturbation. The results show that the initially applied flow can suppress the growth of the interchange mode if the flow is sufficiently large.",

keywords = "3D numerical simulation, Heliotron, Interchange mode, MHD stability, Shear flow",

author = "Katsuji Ichiguchi and Yashiro Suzuki and Yasushi Todo and Masahiko Sato and Timoth{\'e}e Nicolas and Carreras, \{Benjamin A.\} and Satoru Sakakibara and Yuki Takemura and Satoshi Ohdachi and Yoshiro Narushima",

note = "Publisher Copyright: {\textcopyright} 2016 The Japan Society of Plasma Science and Nuclear Fusion Research.",

year = "2016",

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doi = "10.1585/pfr.11.2403035",

language = "English",

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TY - JOUR

T1 - Three-dimensional numerical analysis of shear flow effects on MHD stability in LHD plasmas

AU - Ichiguchi, Katsuji

AU - Suzuki, Yashiro

AU - Todo, Yasushi

AU - Sato, Masahiko

AU - Nicolas, Timothée

AU - Carreras, Benjamin A.

AU - Sakakibara, Satoru

AU - Takemura, Yuki

AU - Ohdachi, Satoshi

AU - Narushima, Yoshiro

PY - 2016/1/1

Y1 - 2016/1/1

N2 - Effects of poloidal shear flow on the stability of interchange modes in a Large Helical Device (LHD) configuration are numerically studied. Three-dimensional (3D) numerical codes are utilized for the equilibrium and stability calculations. A static equilibrium is employed and a model poloidal flow as a flux function is incorporated in the initial perturbation. The results show that the initially applied flow can suppress the growth of the interchange mode if the flow is sufficiently large.

AB - Effects of poloidal shear flow on the stability of interchange modes in a Large Helical Device (LHD) configuration are numerically studied. Three-dimensional (3D) numerical codes are utilized for the equilibrium and stability calculations. A static equilibrium is employed and a model poloidal flow as a flux function is incorporated in the initial perturbation. The results show that the initially applied flow can suppress the growth of the interchange mode if the flow is sufficiently large.

KW - 3D numerical simulation

KW - Heliotron

KW - Interchange mode

KW - MHD stability

KW - Shear flow

U2 - 10.1585/pfr.11.2403035

DO - 10.1585/pfr.11.2403035

M3 - Article

AN - SCOPUS:84969872338

SN - 1880-6821

VL - 11

JO - Plasma and Fusion Research

JF - Plasma and Fusion Research

IS - Specialissue1

M1 - 2403035

ER -

Three-dimensional numerical analysis of shear flow effects on MHD stability in LHD plasmas

Abstract

Keywords

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