<RESEARCH REPORT>Magnetohydrodynamic Equilibrium and Stability of Spheromak with Spheroidal Plasma-Vacuum Interface

  • KANEKO Shobu
    Department of Applied Physics, Faculty of Engineering, The University of Tokyo
  • KAMITANI Atsushi
    Department of Applied Physics, Faculty of Engineering, The University of Tokyo
  • TAKIMOTO Akio
    Central Research Laboratories, Matsushita Electric Industrial Co., Ltd.

この論文をさがす

説明

The analytic solutions to the Grad-Shafranov equation are obtained for a prolate and an oblate spheroidal plasma by using Hill's vortex model. Effects of a toroidal magnetic field B_ℒ on the MHD equilibrium configurations are investigated by using these analytic solutions. When B_ℒ is larger than that of the force-free configuration, the spheroidal plasmas in a vacuum magnetic field are shown to be unable in the MHD equilibrium. The several physical quantities on the equilibrium configuration are evaluated. The spheromak plasma is proved to be unstable if dp/dψ=⃥0 and d^2V/dψ^2≥0 on the magnetic axis. Here p is the pressure and V(ψ) the volume surrounded by a magnetic surface of ψ=const. The equilibrium configurations of the spheroidal plasmas by using Hill's vortex model are shown to satisfy the above conditions, i.e., to be unstable.

収録刊行物

  • Research report

    Research report 732 1-31, 1985-05

    核融合科学研究所

詳細情報 詳細情報について

  • CRID
    1573387451604540672
  • NII論文ID
    110000012018
  • NII書誌ID
    AA0081640X
  • ISSN
    04694732
  • 本文言語コード
    en
  • データソース種別
    • CiNii Articles

問題の指摘

ページトップへ