Electron collisions in the trapped gyro-Landau fluid transport model

G. M. Staebler; J. E. Kinsey

doi:10.1063/1.3505308

Electron collisions in the trapped gyro-Landau fluid transport model

G. M. Staebler, J. E. Kinsey

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

Accurately modeling electron collisions in the trapped gyro-Landau fluid (TGLF) equations has been a major challenge. Insights gained from numerically solving the gyrokinetic equation have lead to a significant improvement of the low order TGLF model. The theoretical motivation and verification of this model with the velocity-space gyrokinetic code GYRO [J. Candy and R. E. Waltz, J. Comput. Phys. 186, 545 (2003)] will be presented. The improvement in the fidelity of TGLF to GYRO is shown to also lead to better prediction of experimental temperature profiles by TGLF for a dedicated collision frequency scan.

Original language	English
Article number	122309
Journal	Physics of Plasmas
Volume	17
Issue number	12
DOIs	https://doi.org/10.1063/1.3505308
State	Published - Dec 2010
Externally published	Yes

Funding

This work was supported by the U.S. Department of Energy under Grant No. DE-FG02-95ER54309.

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10.1063/1.3505308

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Electron collisions in the trapped gyro-Landau fluid transport model

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