Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
P: Fachverband Plasmaphysik
P 12: Poster II
P 12.17: Poster
Dienstag, 27. Februar 2024, 16:30–18:30, ELP 6: Foyer
Validation of the GENE - KNOSOS - Tango Framework Using W7-X Discharges — •Don Lawrence Carl Fernando1, Alejandro Bañon Navarro1, Daniel Carralero2, Jose Luis Velasco2, J. Arturo Alonso2, Alessandro Di Siena1, Felix Wilms1, Frank Jenko1, and W7-X Team3 — 1Max-Planck-Institut für Plasmaphysik, Garching, Germany — 2Laboratorio Nacional de Fusión, CIEMAT, 28040 Madrid, Spain — 3Max-Planck-Institut für Plasmaphysik, Greifswald, Germany
A pre-requisite to carrying out plasma profile predictions using simulation codes are validation studies. Validation ensures the accuracy of the simulated quantities with respect to experimental results. For this reason, a validation study was carried out using four OP1.2b W7-X scenarios that exhibit different turbulence characteristics. The framework of GENE-KNOSOS-Tango, a coupling of gyrokinetic, neoclassical, and transport codes respectively, is used to predict plasma profiles.
The results of this study show the successful validation of this framework for the four scenarios. Additionally, different key effects are also touched upon, such as electron-scale turbulence and the neoclassical radial electric field and its shear. Finally, we looked into simulated turbulence characteristics, such as density fluctuations and heat diffusivity, and compared these with experimental values. Good qualitative agreement is observed as well. This is the first time that such a study has been done for stellarators. The validation of the GENE-KNOSOS-Tango framework enables us to make credible predictions of physical phenomena in stellarators and reactor performance.
Keywords: Turbulence, Gyrokinetics, Validation