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Greifswald 2024 – wissenschaftliches Programm

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P: Fachverband Plasmaphysik

P 12: Poster II

P 12.18: Poster

Dienstag, 27. Februar 2024, 16:30–18:30, ELP 6: Foyer

GRILLIX: Turbulence validation efforts and simulations of advanced divertor concepts — •Jan Pfennig, Wladimir Zholobenko, Andreas Stegmeir, Konrad Eder, Christoph Pitzal, Kaiyu Zhang, Garrad Conway, Gustavo Grenfell, Dominik Brida, and Frank Jenko — Max Planck Institute for Plasma Physics, 85748 Garching b. Muenchen, Germany

Predictive turbulence simulations represent a key tool to describing and understanding the anomalous transport of particles and energy across magnetic flux surfaces of tokamak fusion devices, which is commonly believed to be the main factor determining their confinement properties [1], and thus economic viability. In order to test and verify the physics quality of the locally field-aligned but flux coordinate independent edge turbulence code GRILLIX, extensive validation efforts against ASDEX Upgrade (AUG) L-mode have been performed. As a successive step, GRILLIX simulations of future machine advanced divertor concepts (ADCs), such as downscaled DEMO ADCs [2] as well as magnetic configurations of the new upper divertor in AUG [3], are performed and evaluated.

[1] - A. Dimits et al., Physics of Plasmas, Vol. 7, 2000, DOI 10.1063/1.873896

[2] - F. Militello et al., Nuclear Materials and Energy, Vol. 26, 2021, DOI 10.1016/j.nme.2021.100908

[3] - T. Lunt et al., Nuclear Materials and Energy, Vol. 12, 2017, DOI 10.1016/j.nme.2016.12.035

Keywords: turbulence; simulation; magnetic confinement; fusion; high performance computing

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