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2010 Fiscal Year Final Research Report

Transient and asymptotic behavior of magnetohydrodynamic waves in flowing fusion plasmas

Research Project

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Project/Area Number 19760595
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Nuclear fusion studies
Research InstitutionThe University of Tokyo

Principal Investigator

FURUKAWA Masaru  The University of Tokyo, 大学院・新領域創成科学研究科, 准教授 (80360428)

Project Period (FY) 2007 – 2010
Keywordsプラズマ閉じ込め・安定性 / 磁気流体力学 / プラズマ流
Research Abstract

We have studied resistive-wall-mode stability and error-field effects in a cylindrical plasma both via a reduced model based on the asymptotic matching method and via nonlinear simulations. Plasma rotation induces Doppler shift of wave frequency, which results in the separation of rational and Alfven-resonant surfaces. If the plasma rotation is fast enough, the singular current at the Alfven-resonances suppress the penetration of error fields and the generation of magnetic islands at the rational surface. Through these studies, we recognized several difficulties in the asymptotic matching method, and therefore we have invented a new matching method which can remove these difficulties based on a new idea.

  • Research Products

    (8 results)

All 2011 2010 2009 2008 2007 Other

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (4 results) Remarks (1 results)

  • [Journal Article] A new matching method for linear stability analysis of magnetohydrodynamics (MHD) modes close to the ideal MHD marginal stability2011

    • Author(s)
      M.Furukawa, S.Tokuda
    • Journal Title

      Physics of Plasmas 掲載決定

    • Peer Reviewed
  • [Journal Article] A numerical matching technique for linear resistive magnetohydrodynamics modes2010

    • Author(s)
      M.Furukawa, S.Tokuda, L.-J.Zheng
    • Journal Title

      Physics of Plasmas 17

      Pages: 052502

    • Peer Reviewed
  • [Journal Article] Suppression of error-field-induced magnetic islands by Alfven resonance effect in rotating plasmas2009

    • Author(s)
      M.Furukawa, L.-J.Zheng
    • Journal Title

      Nuclear Fusion 49

      Pages: 075018-1-"075018-6"

    • Peer Reviewed
  • [Presentation] Improvement of the numerical matching technique for resistive MHD stability analysis2010

    • Author(s)
      M.Furukawa, S.Tokuda
    • Organizer
      52th Annual Meeting of Division of Plasma Physics, American Physical Society
    • Place of Presentation
      Chicago, Illinois, USA
    • Year and Date
      2010-11-08
  • [Presentation] Effects of continuous spectra due to plasma rotation on numerical computation of tearing mode stability2009

    • Author(s)
      M.Furukawa, T.Nakatsu
    • Organizer
      51th Annual Meeting of Division of Plasma Physics, American Physical Society
    • Place of Presentation
      Atlanta, Georgia, USA
    • Year and Date
      2009-11-05
  • [Presentation] Tearing mode stability analysis via a new numerical matching technique for resistive MHD2008

    • Author(s)
      M.Furukawa, S.Tokuda, L.-J.Zheng
    • Organizer
      50th Annual Meeting of Division of Plasma Physics, American Physical Society
    • Place of Presentation
      Dallas, Texas, USA
    • Year and Date
      2008-11-17
  • [Presentation] Stability analysis of resistive wall mode including effects of plasma rotation and error field2007

    • Author(s)
      M.Furukawa, L.-J.Zheng
    • Organizer
      49th Annual Meeting of Division of Plasma Physics, American Physical Society
    • Place of Presentation
      Orlando, Florida, USA
    • Year and Date
      2007-11-13
  • [Remarks] ホームページ等

    • URL

      http://www.ppl.k.u-tokyo.ac.jp/furukawa

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Published: 2012-02-13   Modified: 2016-04-21  

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