Turbulence spreading in reversed shear plasmas

M. Yagi, T. Ueda, Sanae Itoh, M. Azumi, K. Itoh, P. H. Diamond, T. S. Hahm

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Turbulence spreading in reversed shear plasmas is investigated using a simple, multi-fluid model of ITG turbulence in toroidal geometry. The temperature profile modification is accompanied by avalanche processes. In addition, it is found that the turbulence spreads inwards and outwards, owing to the nonlinear interactions of turbulence. Analysis of the simulation results indicates that the spatio-temporal propagation of the turbulence front is quantitatively consistent with the scaling of speed predicted by the Fisher front theory.

Original languageEnglish
JournalPlasma Physics and Controlled Fusion
Volume48
Issue number5 A
DOIs
Publication statusPublished - May 1 2006

Fingerprint

Turbulence
turbulence
shear
Plasmas
temperature profiles
avalanches
scaling
Fluids
propagation
Geometry
fluids
geometry
simulation
interactions
Temperature

All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering
  • Condensed Matter Physics

Cite this

Yagi, M., Ueda, T., Itoh, S., Azumi, M., Itoh, K., Diamond, P. H., & Hahm, T. S. (2006). Turbulence spreading in reversed shear plasmas. Plasma Physics and Controlled Fusion, 48(5 A). https://doi.org/10.1088/0741-3335/48/5A/S42

Turbulence spreading in reversed shear plasmas. / Yagi, M.; Ueda, T.; Itoh, Sanae; Azumi, M.; Itoh, K.; Diamond, P. H.; Hahm, T. S.

In: Plasma Physics and Controlled Fusion, Vol. 48, No. 5 A, 01.05.2006.

Research output: Contribution to journalArticle

Yagi, M, Ueda, T, Itoh, S, Azumi, M, Itoh, K, Diamond, PH & Hahm, TS 2006, 'Turbulence spreading in reversed shear plasmas', Plasma Physics and Controlled Fusion, vol. 48, no. 5 A. https://doi.org/10.1088/0741-3335/48/5A/S42
Yagi, M. ; Ueda, T. ; Itoh, Sanae ; Azumi, M. ; Itoh, K. ; Diamond, P. H. ; Hahm, T. S. / Turbulence spreading in reversed shear plasmas. In: Plasma Physics and Controlled Fusion. 2006 ; Vol. 48, No. 5 A.
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