ITG modes in the presence of inhomogeneous field-aligned flow

S. Sen, D.R. McCarthy, M. Lontano, E. Lazzaro, F. Honary

Research output: Contribution to journalArticle

Abstract

In a recent paper, Varischetti et al. (Plasma Phys. Contr. F. 2008, 50, 105008-1-15) have found that in a slab geometry the effect of the flow shear in the field-aligned parallel flow on the linear mode stability of the ion temperature gradient (ITG)-driven modes is not very prominent. They found that the flow shear also has a negligible effect on the mode characteristics. The work in this paper shows that the inclusion of flow curvature in the field-aligned flow can have a considerable effect on the mode stability; it can also change the mode structure so as to effect the mixing length transport in the core region of a fusion device. Flow shear, on the other hand, has indeed an insignificant role in the mode stability and mode structure. Inhomogeneous field-aligned flow should therefore still be considered for a viable candidate in controlling the ITG mode stability and mode structure.
Original languageEnglish
Pages (from-to)180 - 186
Number of pages7
JournalRadiation Effects and Defects in Solids
Volume165
Issue number2
DOIs
Publication statusPublished - Feb 2010
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Radiation
  • Nuclear and High Energy Physics
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Sen, S., McCarthy, D. R., Lontano, M., Lazzaro, E., & Honary, F. (2010). ITG modes in the presence of inhomogeneous field-aligned flow. Radiation Effects and Defects in Solids, 165(2), 180 - 186. https://doi.org/10.1080/10420150903516825