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P: Fachverband Plasmaphysik
P 12: Poster II
P 12.14: Poster
Tuesday, February 27, 2024, 16:30–18:30, ELP 6: Foyer
An engineering tool for the minimization of leading edges in a tungsten-based divertor for W7-X — •Antara Menzel Barbara1,2, Joris Fellinger1, Rudolf Neu1,2, and Dirk Naujoks1 — 1Max Planck Institute for Plasma Physics, Greifswald/Garching, Germany — 2Technical University of Munich, Munich, Germany
An innovative engineering tool is developed specifically for minimizing leading edges in the design of a future tungsten divertor for the Wendelstein 7-X fusion device. Traditionally, mitigating leading edges involves shadowing techniques such as tilting the divertor target or chamfering the problematic edges. However, as W7-X is capable of operating various magnetic configurations, this can lead to particle fluxes impinging from opposing directions on the same target surface, potentially exposing new leading edges when mitigating one. The tool harnesses an extensive ANSYS dataset to correlate heat flux and incidence angles from EMC3-Lite simulations with maximum temperatures at potential leading edges. It comprehensively evaluates major magnetic configurations across varied plasma pressures and toroidal currents, while considering manufacturing and assembly tolerances. In instances where chamfering is necessary, the tool analyzes possible chamfer geometries and assesses the resulting exposed leading edges on neighboring components under different magnetic configurations. Its computational efficiency, enabling analysis within minutes on a single core, allows seamless integration into broader optimization frameworks.
Keywords: divertor; tungsten; leading edges; W7-X; optimization