[Poster Presentation]Numerical simulation of tearing mode suppression by applying non-resonant magnetic perturbations on J-TEXT

Numerical simulation of tearing mode suppression by applying non-resonant magnetic perturbations on J-TEXT

ID：159 Submission ID：69 View Protection：PUBLIC Updated Time：2020-10-29 16:02:04 Hits：284 Poster Presentation

Start Time：2020-11-04 15:50 （Asia/Shanghai）

Duration：5min

Session：[G] Poster session » [G7] Poster Session 10

Video Play Presentation File

Abstract

Numerical simulation of tearing mode suppression by applying non-resonant magnetic perturbations (non-RMPs) has been carried out in the J-TEXT tokamak based on the NIMROD (Non-Ideal Magnetohydrodynamics with Rotation, Open Discussion) code. In the present work, we investigate the growth of n = 1 and n = 2 (n is the toroidal mode number) magnetohydrodynamics (MHD) instabilities, mainly as tearing modes, in response to different modes and amplitudes of non-RMPs generated by the external helical coils. It is found that the tearing mode can be stabilized by non-RMPs, especially for the non-RMPs with mode m/n = -1/1 (m is the poloidal mode number) and coil current I_MP = 4kA.

Keywords

non-RMPs, MHD instabilities, tearing mode, numerical simulation, tokamak plasma

Speaker

Fan Gu

master student School of Electrical and Electronic Engineering, Huazhong University of Science and Technology

Submission Author

Fan Gu School of Electrical and Electronic Engineering, Huazhong University of Science and Technology

Zhonghe Jiang School of Electrical and Electronic Engineering, Huazhong University of Science and Technology

Yunfeng Liang School of Electrical and Electronic Engineering, Huazhong University of Science and Technology；Forschungszentrum Jülich GmbH, Institut für Energie-und Klimaforschung-Plasmaphysik；Institute of Plasma Physics, Chinese Academy of Sciences

Song Zhou School of Electrical and Electronic Engineering, Huazhong University of Science and Technology；Forschungszentrum Jülich GmbH, Institut für Energie-und Klimaforschung-Plasmaphysik