Dynamic interaction between a solitary drift wave structure and zonal flows in a linear cylindrical device

H. Arakawa, T. Kobayashi, S. Inagaki, N. Kasuya, S. Oldenbürger, Y. Nagashima, T. Yamada, M. Yagi, A. Fujisawa, K. Itoh, S. I. Itoh

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

A solitary drift wave structure and its quasi-periodic change are discovered in a linear magnetized plasma. Detailed investigations show that the periodic changes are accompanied by an emission of splash, that is, a short lifetime event characterized by much higher frequencies than that of the fundamental drift waves. Dynamic interaction between the solitary wave and zonal flows is found to cause the emission of splashes since the splashes occur in a particular phase of zonal flows. The findings should give a deep insight into the dynamics and structural formation of magnetically confined plasmas and rotating planets, which are governed by drift and Rossby waves, respectively.

Original languageEnglish
Article number115009
JournalPlasma Physics and Controlled Fusion
Volume53
Issue number11
DOIs
Publication statusPublished - Nov 2011

All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering
  • Condensed Matter Physics

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