Theory of enhanced reversed shear mode in tokamaks

K. C. Shaing, A. Y. Aydemir, W. A. Houlberg, M. C. Zarnstorff

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

It is shown that toroidal-magnetic-field ripple-induced particle flux can drive poloidal E × B speed to bifurcate over the local maximum of the nonlinear poloidal (or parallel) viscosity. Here, E is the electric field, and B is the magnetic field. This mechanism, together with the turbulence suppression due to the radial gradient of the E × B and diamagnetic angular velocity, is employed to explain the enhanced reversed shear mode observed in the core region of tokamaks.

Original languageEnglish
Pages (from-to)5353-5356
Number of pages4
JournalPhysical review letters
Volume80
Issue number24
DOIs
Publication statusPublished - 1998

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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