Formation and Long Term Evolution of an Externally Driven Magnetic Island in Rotating Plasmas

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概要

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• Alfven resonance effects on the evolution of a magnetic island driven by an externally applied perturbation are investigated for rotating plasmas. The simulation results show the importance of Alfven resonance for obtaining a perturbed current profile and estimating a critical value of the external perturbation, beyond which the magnetic island grows rapidly. The nonlinear evolution of the externally driven magnetic island is also investigated at low and high viscosities ν. It is shown that the transition phase accompanying the secondary reconnection at the initial X-point in the driven magnetic island evolution occurs in low resistivity and viscosity plasmas.

著者

• Smolyakov Andrei

  University of Saskatchewan

• ISHII Yasutomo

  Japan Atomic Energy Agency, 801-1 Mukoyama, Naka 311-0193, Japan

• SMOLYAKOV Andrei

  University of Saskatchewan, Saskatoon SK S7N 5E2, Canada

• ISHII Yasutomo

  Japan Atomic Energy Agency, Ibaraki 311-0102, Japan

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