首页|Error field penetration in J-TEXT tokamak based on two-fluid drift-MHD model

Error field penetration in J-TEXT tokamak based on two-fluid drift-MHD model

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An externally generated resonant magnetic perturbation can induce complex non-ideal MHD responses in their reso-nant surfaces.We have studied the plasma responses using Fitzpatrick's improved two-fluid model and program LAYER.We calculated the error field penetration threshold for J-TEXT.In addition,we find that the island width increases slightly as the error field amplitude increases when the error field amplitude is below the critical penetration value.However,the island width suddenly jumps to a large value because the shielding effect of the plasma against the error field disappears after the penetration.By scanning the natural mode frequency,we find that the shielding effect of the plasma decreases as the natural mode frequency decreases.Finally,we obtain the m/n=2/1 penetration threshold scaling on density and temperature.

plasma responsesdrift-MHD modelerror field penetration

王文、徐涛、张仪、the J-TEXT team

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State Key Laboratory of Advanced Electromagnetic Technology,International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics,School of Electrical and Electronic Engineering,Huazhong University of Science and Technology,Wuhan 430074,China

国家自然科学基金

51821005

2024

中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI
影响因子:0.995
ISSN:1674-1056
年,卷(期):2024.33(4)
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