Minimally constrained model of self-organized helical states in reversed-field pinches

G.R. Dennis, S.R. Hudson, D. Terranova, P. Franz, R.L. Dewar, M.J. Hole

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

We show that the self-organized single-helical-axis (SHAx) and double-axis (DAx) states in reversed field pinches can be reproduced in a minimally constrained equilibrium model using only five parameters. This is a significant reduction on previous representations of the SHAx which have required an infinite number of constraints. The DAx state, which has a nontrivial topology, has not previously been reproduced using an equilibrium model that preserves this topological structure. We show that both states are a consequence of transport barrier formation in the plasma core, in agreement with experimental results. We take the limit of zero pressure in this work, although the model is also valid for finite pressure. © 2013 American Physical Society.
Original languageEnglish
Article number055003
Pages (from-to)-
JournalPhysical Review Letters
Volume111
Issue number5
DOIs
Publication statusPublished - 30 Jul 2013
Externally publishedYes

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Dennis, G. R., Hudson, S. R., Terranova, D., Franz, P., Dewar, R. L., & Hole, M. J. (2013). Minimally constrained model of self-organized helical states in reversed-field pinches. Physical Review Letters, 111(5), -. [055003]. https://doi.org/10.1103/PhysRevLett.111.055003