Mainz 2022 – wissenschaftliches Programm
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P: Fachverband Plasmaphysik
P 9: Poster I
P 9.2: Poster
Dienstag, 29. März 2022, 16:00–17:30, P
Non-Axisymmetric Generalization of the Gyrokinetic Turbulence Code GENE-X — •Marion Smedberg1, Dominik Michels1, Andreas Stegmeir1, and Frank Jenko1,2 — 1Max Planck Institute for Plasma Physics, Boltzmannstrasse 2, 85748 Garching, Germany — 2University of Texas at Austin, Austin, TX 78712, USA
For both tokamaks and optimized stellarators, plasma turbulence drives a major part of the heat loss. Thus realistic simulations of plasma turbulence, especially in the edge and scrape-off layer (SOL), are a key step towards a fusion power plant. The recent gyrokinetic turbulence code GENE-X uses a flux-coordinate independent (FCI) coordinate system; this approach has the advantage of remaining well-defined (singularity-free) even for the complex magnetic structures which appear in the edge and SOL, such as open field lines, X-points, islands, and stochastic regions. For this reason, GENE-X is well-equipped to simulate edge and SOL turbulence. However, the code can currently only simulate in axisymmetric geometries, such as tokamaks. In this work, progress towards a non-axisymmetric generalization of GENE-X is presented; this includes updating the grid generator, field line tracers, and fast elliptic solvers.