Enhanced plasma current spike formation due to onset of 1/1 kink-tearing reconnection during a massive gas injection process

被引：0
|
作者：
Zeng, Shiyong [1 ]
Zhu, Ping [2 ,3 ]
Ren, Haijun [1 ]
机构：
[1] Univ Sci & Technol China, Dept Engn & Appl Phys, Hefei 230026, Anhui, Peoples R China
[2] Huazhong Univ Sci & Technol, Sch Elect & Elect Engn, Int Joint Res Lab Magnet Confinement Fus & Plasma, State Key Lab Adv Electromagnet Engn & Technol, Wuhan 430074, Hubei, Peoples R China
[3] Univ Wisconsin, Dept Engn Phys, Madison, WI 53706 USA
来源：
PHYSICS OF PLASMAS | 2023年 / 30卷 / 08期
基金：
中国国家自然科学基金;
关键词：
All Open Access; Green;
D O I：
10.1063/5.0155718
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
The formation of the plasma current spike at the end of the thermal quench phase is studied systematically, which is found to strongly correlate to the onset of the 1/1 kink-tearing reconnection in the simulation results. The magnetohydrodynamic (MHD) activity on the q = 1 surface plays a critical role in the spike formation and the disruption process, namely, when the safety factor in the magnetic axis q0 exceeds 1, the plasma major disruption transits into successive minor disruptions and the start of thermal quench phase is delayed.
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页数：11
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