Equivalence of two different approaches to global δf gyrokinetic simulations

Felix I. Parra, Michael Barnes

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

A set of flux tube gyrokinetic equations that includes the effect of the spatial variation of the density, temperature and rotation gradients on the turbulence is derived. This new set of equations uses periodic boundary conditions. In the limit l/L 蠐 1, where l is the characteristic perpendicular length of turbulent structures and L is the characteristic size of the device, this new set of flux tube gyrokinetic equations is shown to be equivalent to the traditional global δf gyrokinetic equations to an order higher in l/L than the usual flux tube formulations.

Original languageEnglish (US)
Article number054003
JournalPlasma Physics and Controlled Fusion
Volume57
Issue number5
DOIs
StatePublished - May 1 2015
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering
  • Condensed Matter Physics

Keywords

  • flux tube
  • gyrokinetic
  • turbulence

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