Model Collision Operators for Numerical Gyrokinetics

I. G. Abel, M. Barnes, S. C. Cowley, W. Dorland, G. W. Hammett, A. A. Schekochihin, T. Tatsuno

Research output: Chapter in Book/Report/Conference proceedingConference contribution


We motivate the need to include collisional dissipation in gyrokinetic turbulence simulations, and construct criteria for a physically valid model of such dissipation. A new analytically manageable operator satisfying those criteria is presented and transformed into gyrokinetic variables. The form of conservation laws for collision operators in gyrokinetic variables is explained. The numerical implementation of our new operator in the code GS2 is outlined and successful tests from this code presented.

Original languageEnglish (US)
Title of host publicationTheory of Fusion Plasmas - Joint Varenna-Lausanne International Workshop
EditorsOlivier Sauter, Elio Sindoni, Xavier Garbet
PublisherAmerican Institute of Physics Inc.
Number of pages7
ISBN (Electronic)9780735406001
StatePublished - 2008
Externally publishedYes
EventJoint Varenna-Lausanne International Workshop on Theory of Fusion Plasmas - Varenna, Italy
Duration: Aug 25 2008Aug 29 2008

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


ConferenceJoint Varenna-Lausanne International Workshop on Theory of Fusion Plasmas

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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