Collisional Physics in GS2

POSTER

Abstract

Collisions are an important component of gyrokinetic systems, even in the long mean-free-path limit. In this poster, we recall the role of collisions in several interesting test cases (kinetic Alfven waves, reconnection, zonal flow damping, and neoclassical transport). Upgrades to the GS2 collision operator that proved to be necessary to obtain expected results in each area have been implemented and will be described.

*This work supported in part by the CMPD, DOE grant DEFC0204ER54784

Authors

  • W.D. Dorland

    • CMPD -- UMD
    • Univ. of MD, Dept. of Physics
    • University of Maryland
    • University of Maryland, College Park
    • U. Maryland

  • Paolo Ricci

    • Dartmouth College
    • Dartmouth

  • Alexander Schekochihin

    • Cambridge University

  • Gregory Howes

    • UC-Berkeley

  • Barrett Rogers

    • Dartmouth College

  • Darin Ernst

    • MIT