NEOCLASSICAL TRANSPORT FLUXES IN THE PLATEAU REGIME IN NONAXISYMMETRIC TOROIDAL PLASMAS.

K. C. Shaing, S. P. Hirshman, J. D. Callen

Research output: Contribution to journalArticlepeer-review

97 Citations (Scopus)

Abstract

The neoclassical fluxes in the plateau regime in an arbitrary large aspect ratio nonaxisymmetric toroidal system are calculated using fluid equations. The results are evaluated explicitly for a stellarator and for a rippled tokamak. For typical stellarator parameters, the helical magnetic field contribution to the particle and heat fluxes is comparable to the toroidicity contribution, and therefore, cannot be neglected. In addition, the helical magnetic field contribution to the parallel viscosity is capable of reversing the directions of the bootstrap current and Ware pinch flux in the plateau regime. In contrast, the neoclassical particle and heat fluxes in a rippled tokamak are comparable to those in an axisymmetric tokamak after the radial electric field and parallel flow velocity are determined (without external sources).

Original languageEnglish
Pages (from-to)521-526
Number of pages6
JournalPhysics of fluids
Volume29
Issue number2
DOIs
Publication statusPublished - 1986 Feb

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Fingerprint

Dive into the research topics of 'NEOCLASSICAL TRANSPORT FLUXES IN THE PLATEAU REGIME IN NONAXISYMMETRIC TOROIDAL PLASMAS.'. Together they form a unique fingerprint.

Cite this