Investigation of trigger mechanism in the explosive nonlinear growth of the double tearing mode

Miho JANVIER, Yasuaki KISHIMOTO, Jiquan LI

    Research output: Contribution to journalArticle

    Abstract

    Magnetic reconnection dynamics due to the nonlinearly destabilized double tearing mode (DTM) is simulated, focusing on the nonlinear growth phase in the framework of reduced resistive magnetohydrodynamics (MHD). The nonlinearly explosive growth of the DTM accompanying fast magnetic reconnection is found to result from a secondary instability, the mechanism of which consists of the sequential unstable modulation due to two- dimensional distortion of magnetic islands and modification of the nonlinear current profile. The trigger dynamics of the nonlinear growth phase is illustrated via the investigation of the evolution of both the kinetic and magnetic energies of the secondary instability.
    Original languageEnglish
    Pages (from-to)S2056-1 -S2056-4
    Number of pages4
    JournalPlasma and Fusion Research
    Volume5
    DOIs
    Publication statusPublished - 2010

    Fingerprint Dive into the research topics of 'Investigation of trigger mechanism in the explosive nonlinear growth of the double tearing mode'. Together they form a unique fingerprint.

  • Cite this