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Numerical simulation of plasmas instabilities by applying non-resonant magnetic perturbations on J-TEXT
ID：19 View Protection：PUBLIC Updated Time：2021-07-13 08:15:43 Hits：1287 Poster Presentation

Start Time：2021-07-12 11:40（Asia/Shanghai）

Duration：20min

Session：E E-poster » EE-poster

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Abstract
Simulations of the influence of external non-resonant magnetic perturbation field (non-RMP) on plasma instabilities are performed with the 3D magnetohydrodynamic code called NIMROD. And non-RMP with the dominant mode of m/n=-1/1 is used as the boundary condition of NIMROD simulations. Simulation results show that magnetic perturbation of plasma is supressed with the addition of non-RMP. And in a certain range, the larger the amplitude of the non-RMP is, the more obvious the suppression effects on plasmas perturbation of n=1 is. Moreover, the effects of non-RMP on plasma disruption is investigated. It was found that non-RMP could not only significantly reduce the amplitude and rate of instability growth, but also delay the TQ and CQ timeduring disruption.
Keywords
plasma instabilities;non-resonant magnetic perturbation field;numerical simulation
Speaker
Fan Gu
student School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan

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Important Date

  • Conference Date

    Jul 12

    2021

    to

    Jul 15

    2021

  • Jun 20 2021

    Abstract Submission Deadline

  • Jun 25 2021

    Abstract Notification of Acceptance

  • Jul 14 2021

    Contribution Submission Deadline

  • Jul 31 2021

    Registration deadline

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Huazhong University of Science and Technology
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