Coriolis Force Effect on Suppression of Neo-Classical Tearing Mode Triggered Explosive Burst in Reversed Magnetic Shear Tokamak Plasmas

doi:10.1088/0256-307X/38/4/045204

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Abstract：We numerically investigate the Coriolis force effect on the suppression of an explosive burst, triggered by the neo-classical tearing mode, in reversed magnetic shear configuration tokamak plasmas, using a reduced magnetohydrodynamic model, including bootstrap current. Previous works have shown that applying differential poloidal rotation, with rotation shear located near the outer rational surface, is an effective way to suppress an explosive burst. In comparison with cases where there is no Coriolis force, the amplitude of differential poloidal rotation required to effectively suppress the explosive burst is clearly reduced once the effect of Coriolis force is taken into consideration. Moreover, the effective radial region of the rotation shear location is broadened in cases where the Coriolis force effect is present. Applying rotation with shear located between the radial positions of $q_{\rm min}$ and the outer rational surface always serves to effectively suppress explosive bursts, which we anticipate will reduce operational difficulties in controlling explosive bursts, and will consequently prevent plasma disruption in tokamak experiments.

收稿日期: 2020-11-14 出版日期: 2021-04-06

:	52.55.Fa	(Tokamaks, spherical tokamaks)
	52.30.Cv	(Magnetohydrodynamics (including electron magnetohydrodynamics))
	52.35.Py	(Macroinstabilities (hydromagnetic, e.g., kink, fire-hose, mirror, ballooning, tearing, trapped-particle, flute, Rayleigh-Taylor, etc.))
	52.55.Tn	(Ideal and resistive MHD modes; kinetic modes)

引用本文:

. [J]. 中国物理快报, 2021, 38(4): 45204-.
Tong Liu , Lai Wei , Feng Wang, and Zheng-Xiong Wang . Coriolis Force Effect on Suppression of Neo-Classical Tearing Mode Triggered Explosive Burst in Reversed Magnetic Shear Tokamak Plasmas. Chin. Phys. Lett., 2021, 38(4): 45204-.

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https://cpl.iphy.ac.cn/CN/10.1088/0256-307X/38/4/045204 或 https://cpl.iphy.ac.cn/CN/Y2021/V38/I4/45204

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