Collisional effects on coherent structures of zonal flows and turbulent transport

K. Itoh, K. Hallatschek, S. Toda, S. I. Itoh, P. H. Diamond, M. Yagi, H. Sanuki

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


The collisional effects on nonlinear coherent structures of zonal flows in a toroidal plasma are investigated. They weaken the flows and enhance turbulent transport. Expressions for the zonal flow velocity, scale length and the turbulent transport coefficients are obtained. In the limit of small collisional flow damping, the turbulent transport coefficient remains finite. A phase diagram is obtained, which shows the parameter domain where the zonal flow has finite amplitude.

Original languageEnglish
Pages (from-to)A335-A340
JournalPlasma Physics and Controlled Fusion
Issue number5 SUPPL. A
Publication statusPublished - May 2004

All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering
  • Condensed Matter Physics


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