Effects of toroidal rotation and ion collisional viscosity on low-frequency zonal flow in tokamak plasma

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成果类型：

期刊论文

作者：

Chen, You;Yu, Jun;Xie, Bao-yi*;Yin, Lan;Xiang, Dong;...

通讯作者：

Xie, Bao-yi;Gong, XY

作者机构：

[Yin, Lan; Gong, Xue-yu; Chen, You; Xie, Bao-yi; Xiang, Dong; Xie, BY] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.

[Yu, Jun] Zhejiang Guangsha Vocat & Tech Univ Construct, Sch Intelligent Mfg, Dongyang 322100, Peoples R China.

[Yin, Lan; Chen, You] Univ South China, Sch Math & Phys, Hengyang 421001, Peoples R China.

[Yin, Lan; Chen, You] Univ South China, Hunan Key Lab Math Modeling & Sci Comp, Hengyang 421001, Peoples R China.

通讯机构：

[Gong, XY ; Xie, BY] U

Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.

语种：

英文

关键词：

Aerodynamics;Damping;Isotherms;Mach number;Magnetoplasma;Rotation;Tokamak devices;Viscosity;Collisional viscosity;Damping rate;Fluid modeling;Isothermal process;Low-frequency zonal flow;Lower frequencies;Theoretical investigations;Tokamak plasmas;Toroidal rotation;Zonal flows;Ions

期刊：

Journal of the Korean Physical Society

ISSN：

0374-4884

年：

2024

卷：

期：

页码：

604-609

DOI：

10.1007/s40042-024-01023-9

基金类别：

This work was supported by the National Magnetic Confinement Fusion Program of China (Grant No. 2022YFE03090001 and 2022YFE03070003), the National Natural Science Foundation of China (Grant Nos.12075114, 12375220, and 12105188), the Hunan Provincial Innovation Foundation for Postgraduate (Grant Nos. CX2017B502), and the longitudinal research Project at the University of South China (Grant No.230XJZ093).

机构署名：

本校为第一且通讯机构

院系归属：

核科学技术学院

数理学院

摘要：

Theoretical investigations are conducted to examine the impact of toroidal rotation and ion collisional viscosity on low-frequency zonal flow (LFZF) in a tokamak plasma with the fluid model. The results indicate that while the frequency of LFZF remains unchanged during an isothermal process with γ=1, its damping rate is influenced by both toroidal rotation and ion collisional viscosity. Specifically, as the ion collisional viscosity increases, so does the damping rate of LFZF; conversely, as the toroidal rotation As its Mach number rises, its ...

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Effects of toroidal rotation and ion collisional viscosity on low-frequency zonal flow in tokamak plasma

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