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Hannover 2020 – wissenschaftliches Programm

Die DPG-Frühjahrstagung in Hannover musste abgesagt werden! Lesen Sie mehr ...

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P: Fachverband Plasmaphysik

P 4: Helmholtz Graduate School 1 and Magnetic confinement 1

P 4.4: Vortrag

Montag, 9. März 2020, 15:20–15:45, b305

Integrated modeling of tokamak plasma confinement — •Teobaldo Luda1, Clemente Angioni1, Micheal Dunne1, Emiliano Fable1, Arne Kallenbach1, Philip Schneider1, Mattia Siccinio1, Giovanni Tardini1, The ASDEX Upgrade team1, and The EUROfusion MST1 Team21Max–Planck–Institut für Plasmaphysik, Boltzmannstrasse 2, D–85748 Garching, Germany — 2See author list of B. Labit et al., 2019 Nucl. Fusion 59 086020

The design of future fusion reactors and their operational scenarios requires an accurate prediction of the plasma confinement. We have developed a new model that integrates different elements describing the main physics phenomena which determine plasma confinement. In particular, we are coupling a new pedestal transport model, based on empirical observations, to the ASTRA transport code, which, together with the TGLF turbulent transport model and the NCLASS neoclassical transport model, allows us to describe transport from the magnetic axis to the separatrix. We also coupled a simple scrape-off layer model to ASTRA, which provides the boundary conditions at the separatrix, which are a function of the main engineering parameters. By this way no experimental data of the kinetic profiles is needed, and the only inputs of the model are the magnetic field, the plasma current, the heating power, the fueling rate, the plasma geometry, and the effective charge. In the modeling work-flow, first a scan in pedestal pressure is performed, by changing the pedestal width. Then the pedestal top pressure is determined using the MISHKA MHD stability code. The model is tested by simulating ASDEX Upgrade discharges.

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