Role of magnetic shear in flow shear suppression

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4 Citations (Scopus)

Abstract

The interplay between flow shear and magnetic shear is studied in the three-dimensional reduced magnetohydrodynamic turbulence. It is analytically shown that near the resonance surface, transport quenching by flow shear is weakened by magnetic shear as the latter interferes with shearing process. In particular, anomalous particle transport becomes more efficient in the regime with stronger magnetic shear for a given flow shear while self-regulation of zonal flows becomes less effective. The results suggest that weak magnetic shear could be favorable for the formation of transport barrier.

Original languageEnglish
Article number084504
JournalPhysics of Plasmas
Volume14
Issue number8
DOIs
Publication statusPublished - 29 Aug 2007
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics

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