Coherent structure of zonal flow and onset of turbulent transport

K. Itoh, K. Hallatschek, S. I. Itoh, P. H. Diamond, S. Toda

研究成果: Contribution to journalArticle査読

48 被引用数 (Scopus)

抄録

Excitation of the turbulence in the range of drift wave frequency and zonal flow in magnetized plasmas is analyzed. Nonlinear stabilization effect on zonal flow drive is introduced, and the steady state solution is obtained. The condition for the onset of turbulent transport is obtained and partition ratio of fluctuation energy into turbulence and zonal flows is derived. The turbulent transport coefficient, which includes the effect of zonal flow, is also obtained. Analytic result and direct numerical simulation show a good agreement.

本文言語英語
論文番号062303
ページ(範囲)1-14
ページ数14
ジャーナルPhysics of Plasmas
12
6
DOI
出版ステータス出版済み - 2005

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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