MHD Simulations of Pellet Injection in the LHD

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<p>To clarify motions of a plasmoid induced by pellet ablation in the Large Helical Device (LHD), MHD simulations have been conducted. When a plasmoid is located on the inboard side of the mid-plane in the LHD, it drifts in the negative direction of the major radius not only on the horizontally elongated poloidal cross section but also on the vertically elongated poloidal cross section. This means that the plasmoid drifts to the lower field side in the former and to the higher field side in the latter. Our simulations show that these motions are determined by the direction of the curvature vector and the magnetic pressure distribution along the field line at the location of the plasmoid.</p>

Journal

  • Plasma and Fusion Research

    Plasma and Fusion Research 9 (0), 3403130-3403130, 2014

    The Japan Society of Plasma Science and Nuclear Fusion Research

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