Göttingen 2025 – wissenschaftliches Programm
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P: Fachverband Plasmaphysik
P 10: Poster Session I
P 10.20: Poster
Dienstag, 1. April 2025, 16:15–18:15, ZHG Foyer 1. OG
Development and validation of optimized grids for simulations of erosion and impurity transport — •Lukas Maximilian Ellerbrock1,2, Christoph Baumann1, Andreas Kirschner1, Henri Kumpulainen1, Berkant Palazoglu1, Juri Romazanov1, Sebastijan Brezinsek1,2, and Christian Linsmeier1,3 — 1Forschungszentrum Jülich IFN-1, Jülich, Germany — 2Heinrich-Heine-Universität, Düsseldorf, Germany — 3Ruhr-Universität, Bochum, Germany
Fusion reactors require precise numerical predictions of plasma-wall interactions and impurity transport. Such predictions can be provided by numerical tools like the 3D Monte-Carlo simulation code ERO2.0. The present work deals with improvements of the ERO2.0 code regarding the numerical grid layout with the goal to optimize precision and computing power.
Until recently, simple rectangular grids were used to store the input distributions of plasma parameters like density and temperature coming from codes like SOLPS. However, the spatial resolution of these rectangular grids is limited due to memory reasons. This limitation can lead to artefacts in the simulation results. Therefore, a new code version introduced flexible field-aligned grids to improve the spatial resolution.
To verify the development, test simulations are applied for tungsten erosion in the future DEMO reactor and further improvements are made to optimize the precision of the code.
Keywords: PWI; ERO2.0; SOLPS; Simulation; Fusion