Bulletin of the American Physical Society
49th Annual Meeting of the Division of Plasma Physics
Volume 52, Number 11
Monday–Friday, November 12–16, 2007; Orlando, Florida
Session CP8: Poster Session II: Reconnection and Non-Neutral I; Spheromaks and MCX; MFC Diagnostics; Simulation: Algorithm; Simulation: Kinetic/Edge
Monday, November 12, 2007
Rosen Centre Hotel Room: Grand Ballroom, 2:00pm - 5:00pm
Abstract ID: BAPS.2007.DPP.CP8.123
Abstract: CP8.00123 : Gyrokinetic Models for Edge Plasmas*
Preview Abstract Abstract
We summarize a gyrokinetic model for charged-particle species in MFE edge plasmas and address several important issues. 1) The gyrokinetic Vlasov equations should be in conservation form to facilitate a conservative discretization. 2) The differences between the orderings used and results obtained by Qin et. al. [electromagnetic, and targeted to edge plasmas; Phys. Plasmas 14, 056110 (2007)] and Hahm et al. [electrostatic and targeted to core transport barriers; Phys. Plasmas 3, 4658 (1996)] are examined. Both assume that the electric potential is split into a large long-wavelength part and a small-amplitude perturbed part. Qin asserts that his particular form of the second-order potential is needed for energy conservation. 3) We examine practical forms of the gyrokinetic Poisson-Maxwell equations for the case when the perturbations are neither small-amplitude nor long-wavelength. 4) We build on the theoretical formulations of large-amplitude Gyrokinetic Coulomb collision operators (when linearization does not apply; e.g., by Brizard and by Qin et. al.) to develop an operator suitable for numerical implementation.
*Work performed for U.S. DOE by U.C. LLNL under Contract W7405-ENG-48.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2007.DPP.CP8.123
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