SMuK 2023 – wissenschaftliches Programm
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P: Fachverband Plasmaphysik
P 11: Poster I
P 11.48: Poster
Mittwoch, 22. März 2023, 14:00–15:30, HSZ EG
Non-Axisymmetric Generalization of the Gyrokinetic Turbulence Code GENE-X — •Marion Smedberg1, Andreas Stegmeir1, Philipp Ulbl1, 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 optimized stellarators, edge plasma turbulence both sets the boundary condition for core performance and determines the heat fluxes onto the plasma-facing components. Thus realistic simulations of plasma turbulence in the edge and scrape-off layer (SOL) are a key step towards a stellarator power plant. The gyrokinetic turbulence code GENE-X [1] is well-equipped to simulate edge and SOL turbulence due to the use of a flux-coordinate independent (FCI) coordinate system [2]. However, until now the code has only simulated in axisymmetric geometries, such as tokamaks. Here progress towards a non-axisymmetric upgrade of the GENE-X code is presented. The focus will be on the implementation of stellarator magnetic fields, the development of numerical methods for representing the shape of three-dimensional flux surfaces, and simulating simple diffusion and advection models in a fully three-dimensional geometry.
[1] D. Michels, et. al., Comput. Phys. Commun. 264 (2021)
[2] F. Hariri, et. al., Comput. Phys. Commun. 184 (2013)