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Validation of quasi-linear turbulent transport models against plasmas with dominant electron heating for the prediction of ITER PFPO-1 plasmas

Authors :
G. Tardini
Th. Pütterich
Nicola Bonanomi
P. A. Schneider
Christian K. Kiefer
Benedikt Geiger
E. Fable
C. Angioni
EUROfusion Mst Team
P. Mantica
Jet Contributors
ASDEX Upgrade Team, Max Planck Institute for Plasma Physics, Max Planck Society
EUROfusion MST1 Team
JET Contributors
Source :
Nuclear Fusion, Nuclear fusion 61 (2021): 066035-1–066035-17. doi:10.1088/1741-4326/abfc9c, info:cnr-pdr/source/autori:Kiefer C.K.; Angioni C.; Tardini G.; Bonanomi N.; Geiger B.; Mantica P.; Putterich T.; Fable E.; Schneider P.A./titolo:Validation of quasi-linear turbulent transport models against plasmas with dominant electron heating for the prediction of ITER PFPO-1 plasmas/doi:10.1088%2F1741-4326%2Fabfc9c/rivista:Nuclear fusion/anno:2021/pagina_da:066035-1/pagina_a:066035-17/intervallo_pagine:066035-1–066035-17/volume:61
Publication Year :
2021

Abstract

Kinetic profile predictions of ITER PFPO-1 plasmas require high accuracy in the central electron temperatures to be applied to the calculation of third harmonic electron cyclotron absorption. Correctly predicting the transition from L-mode to H-mode further requires precise estimates of the ion heat flux in the periphery of the plasma. Recent versions of the quasi-linear transport models TGLF and QuaLiKiz were tested against an extensive set of experimental results from ASDEX Upgrade (AUG) and JET-ILW, where the focus was put on AUG plasmas heated by ECRH. Spectra obtained from TGLF are compared to a set of linear gyrokinetic simulations performed with GKW. Electron and ion temperature profiles obtained with TGLF-SAT1geo show good agreement with the experimental profiles, but there is a slight tendency to underpredict central T e and T i at high ratios T e/T i. QuaLiKiz yields reasonable results for T e and T i profiles in plasmas where the ion temperature gradient mode is dominant, but predicts a significantly too weak transport in the presence of dominant trapped electron modes in conditions of strong central electron heating.

Details

Language :
English
Database :
OpenAIRE
Journal :
Nuclear Fusion, Nuclear fusion 61 (2021): 066035-1–066035-17. doi:10.1088/1741-4326/abfc9c, info:cnr-pdr/source/autori:Kiefer C.K.; Angioni C.; Tardini G.; Bonanomi N.; Geiger B.; Mantica P.; Putterich T.; Fable E.; Schneider P.A./titolo:Validation of quasi-linear turbulent transport models against plasmas with dominant electron heating for the prediction of ITER PFPO-1 plasmas/doi:10.1088%2F1741-4326%2Fabfc9c/rivista:Nuclear fusion/anno:2021/pagina_da:066035-1/pagina_a:066035-17/intervallo_pagine:066035-1–066035-17/volume:61
Accession number :
edsair.doi.dedup.....d4e90d614c8bbfc5be824b3215883ee2
Full Text :
https://doi.org/10.1088/1741-4326/abfc9c