Intrinsic rotation with gyrokinetic models

Felix I. Parra, Michael Barnes, Iván Calvo, Peter J. Catto

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


The generation of intrinsic rotation by turbulence and neoclassical effects in tokamaks is considered. To obtain the complex dependences observed in experiments, it is necessary to have a model of the radial flux of momentum that redistributes the momentum within the tokamak in the absence of a preexisting velocity. When the lowest order gyrokinetic formulation is used, a symmetry of the model precludes this possibility, making small effects in the gyroradius over scale length expansion necessary. These effects that are usually small become important for momentum transport because the symmetry of the lowest order gyrokinetic formulation leads to the cancellation of the lowest order momentum flux. The accuracy to which the gyrokinetic equation needs to be obtained to retain all the physically relevant effects is discussed.

Original languageEnglish (US)
Article number056116
JournalPhysics of Plasmas
Issue number5
StatePublished - May 2012
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics


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