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 journalArticle

9 Citations (Scopus)

Abstract

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
Volume46
Issue number5 SUPPL. A
DOIs
Publication statusPublished - May 2004

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Flow velocity
Phase diagrams
Damping
Plasmas
transport properties
toroidal plasmas
flow velocity
damping
phase diagrams

All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering
  • Condensed Matter Physics

Cite this

Itoh, K., Hallatschek, K., Toda, S., Itoh, S. I., Diamond, P. H., Yagi, M., & Sanuki, H. (2004). Collisional effects on coherent structures of zonal flows and turbulent transport. Plasma Physics and Controlled Fusion, 46(5 SUPPL. A), A335-A340. https://doi.org/10.1088/0741-3335/46/5A/037

Collisional effects on coherent structures of zonal flows and turbulent transport. / Itoh, K.; Hallatschek, K.; Toda, S.; Itoh, S. I.; Diamond, P. H.; Yagi, M.; Sanuki, H.

In: Plasma Physics and Controlled Fusion, Vol. 46, No. 5 SUPPL. A, 05.2004, p. A335-A340.

Research output: Contribution to journalArticle

Itoh, K, Hallatschek, K, Toda, S, Itoh, SI, Diamond, PH, Yagi, M & Sanuki, H 2004, 'Collisional effects on coherent structures of zonal flows and turbulent transport', Plasma Physics and Controlled Fusion, vol. 46, no. 5 SUPPL. A, pp. A335-A340. https://doi.org/10.1088/0741-3335/46/5A/037
Itoh, K. ; Hallatschek, K. ; Toda, S. ; Itoh, S. I. ; Diamond, P. H. ; Yagi, M. ; Sanuki, H. / Collisional effects on coherent structures of zonal flows and turbulent transport. In: Plasma Physics and Controlled Fusion. 2004 ; Vol. 46, No. 5 SUPPL. A. pp. A335-A340.
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