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Benchmark of quasi-linear models against gyrokinetic single scale simulations in deuterium and tritium plasmas for a JET high beta hybrid discharge

Author
Abstract

A benchmark of the reduced quasi-linear models QuaLiKiz and TGLF with GENE gyrokinetic simulations has been performed for parameters corresponding to a JET high performance hybrid pulse in deuterium. Given the importance of the study of such advanced scenarios in view of ITER and DEMO operations, the dependence of the transport on the ion isotope mass has also been assessed, by repeating the benchmark changing the ion isotope to tritium. TGLF agrees better with GENE on the linear spectra and the flux levels. However, concerning the isotope dependence, only QuaLiKiz reproduces the GENE radial trend of a basically gyro-Bohm (gB) scaling at inner radii and instead anti-gB at outer radii. The physics effects which are responsible of the antigB effect in GENE simulations have been singled out.

Year of Publication
2021
Journal
Nuclear Fusion
Volume
61
Issue
6
Number of Pages
066032
Publisher
IOP Publishing
DOI
10.1088/1741-4326/abfb12
PId
fabf5c073e852692f0dee90522213c7f
Alternate Journal
Nucl. Fusion
Label
OA
Attachment
Journal Article
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