Energetics of resistive wall modes in flowing plasmas

研究成果: Article査読

5 被引用数 (Scopus)

抄録

Stabilization/destabilization of magnetohydrodynamic (MHD) waves are formulated in terms of wave energy, where the waves are subject to Alfvén and sound resonances and also influenced by small resistivity at conductive wall. Negative energy wave, which may exist in the presence of mean flow, is shown to be destabilized by the resistive wall, where its growth rate is characterized by the energy dissipation rate. The effect of resonance is examined as well based on a recent knowledge of wave energy for Alfvén and sound continuum modes. Resonant coupling between an eigenmode and a continuum mode having the same sign of energy results in phase mixing (or continuum) damping. In contrast, if their signs are opposite, such resonance triggers an instability.

本文言語English
ページ(範囲)409-410
ページ数2
ジャーナルPlasma Science and Technology
11
4
DOI
出版ステータスPublished - 2009 12 11
外部発表はい

ASJC Scopus subject areas

  • 凝縮系物理学

フィンガープリント

「Energetics of resistive wall modes in flowing plasmas」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル