Abstract Details
| status: | file name: | submitted: | by: |
|---|---|---|---|
| approved | sherwood_poster.pdf | 2019-04-18 14:01:47 | Noah Noah Mandell |
Abstracts
Author: Noah R Mandell
Requested Type: Poster
Submitted: 2019-02-23 09:49:48
Co-authors: G. Hammett, A. Hakim, M. Francisquez, T. Bernard
Contact Info:
PPPL
Princeton Plasma Physics Labor
Princeton, New Jersey 08540
United States
Abstract Text:
Gkeyll, a full-F continuum gyrokinetic code, is being developed to study turbulence in the edge region of fusion devices. The edge region involves large-amplitude fluctuations, electromagnetic effects, and plasma interactions with material walls, making it more computationally challenging than the core region. Gkeyll models the turbulence by solving the 5-D full-F gyrokinetic system in Hamiltonian form using an energy conserving high-order discontinuous Galerkin scheme. The code has been extended to include self-consistent electromagnetic perturbations using a symplectic ($v_parallel$) formulation. We present some linear benchmarks that illustrate the success of the electromagnetic scheme and the avoidance of the Ampere cancellation problem. We also present nonlinear electromagnetic turbulence simulations in a model SOL geometry with sheath boundary conditions on open field lines. The effects of electromagnetic fluctuations on the turbulence are discussed.
Comments:
Please see placement instructions from G. Hammett's submission.
