Bremen 2017 – wissenschaftliches Programm

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P: Fachverband Plasmaphysik

P 6: Helmholtz Graduate School I

P 6.12: Poster

Montag, 13. März 2017, 16:30–18:30, HS Foyer

SOLPS Modeling of Partially Detached Plasmas in ASDEX Upgrade — •Ferdinand Hitzler1,2, Marco Wischmeier1, Felix Reimold3, Xavier Bonnin4, Arne Kallenbach1, the ASDEX Upgrade Team1, and the EUROfusion MST1 Team51Max-Planck-Institut für Plasmaphysik, Garching, Germany — 2Technische Universität München, Garching, Germany — 3Forschungszentrum Jülich, Jülich, Germany — 4ITER Organization, St. Paul-lez-Durance, France — 5See http://www.euro-fusionscipub.org/mst1

Power exhaust in future fusion devices like ITER is a challenging issue which has to be addressed carefully. For an unmitigated power flux the power load limits for the divertor components of around 10 MWm−2 would be exceeded considerably. In order to be able to sustain operation under reactor conditions the power load at the divertor plates has to be reduced significantly. This reduction can be achieved via detachment, a divertor regime which is observed at high plasma densities and low divertor temperatures.

The goal of this contribution is the investigation of divertor detachment using the SOLPS code package for interpretative simulations. Since ITER is foreseen to be operated in a partially detached regime in H-mode, the main focus of this work is the transition from the high recycling to the partially detached regime. The width of this transition, the operational window, and possible advantages and disadvantages of different degrees of detachment are discussed. A code validation will be performed via comparison of the modeling results with experimental data from ASDEX Upgrade in nitrogen and argon seeded H-mode.

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