Successful prediction of tokamak transport in the L-mode regime

A long standing shortfall in the predicted L-mode edge energy transport by reduced quasi-linear models of gyrokinetic turbulent transport has been resolved. The improved model TGLF-SAT2 has higher fidelity to gyrokinetic simulations of the electron-scale contribution to the electron energy transport...

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Bibliographic Details
Published in:Nuclear fusion 2024-08, Vol.64 (8), p.85002
Main Authors: Staebler, G.M., Park, J.M., Hassan, E., Angioni, C., Fable, E., Bourdelle, C., Kinsey, J.E., Holland, C., Belli, E.A., Neiser, T., Candy, J., Waltz, R.E.
Format: Article
Language:English
Subjects:
tokamak
transport
turbulence
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Summary:A long standing shortfall in the predicted L-mode edge energy transport by reduced quasi-linear models of gyrokinetic turbulent transport has been resolved. The improved model TGLF-SAT2 has higher fidelity to gyrokinetic simulations of the electron-scale contribution to the electron energy transport and the ion-scale flux surface shape dependence of energy transport. The success of TGLF-SAT2 in predicting the L-mode and Ohmic edge profiles is critical to whole pulse simulation and opens the door to prediction of the H-mode power threshold.
ISSN:0029-5515
1741-4326
DOI:10.1088/1741-4326/ad5a1b