Disparate scale nonlinear interactions in edge turbulence

M. Yagi, S. I. Itoh, K. Itoh, P. H. Diamond

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


In this topical review, we explain the recent achievement in the study of nonlinear interactions, putting an emphasis on the relevance to edge turbulence. First, we start from the survey of the essence in the nonlinear theory of drift wave -zonal flows systems, and visit the experimental observations of the nonlinear interactions of tokamak edge turbulence. Secondly, the universality of intermittent convective transport in the SOL of different magnetic devices are shown. Then, we discuss evolution of collisional drift wave instability in the linear plasma configuration, which is bounded by end plates having analogy to SOL plasmas. By introducing the Numerical Linear Device, the intermittent evolution of large-amplitude instabilities, generation mechanism of the poloidal flow and other nonlinear process are examined.

Original languageEnglish
Pages (from-to)13-22
Number of pages10
JournalContributions to Plasma Physics
Issue number1-3
Publication statusPublished - Mar 2008

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics


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