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Title: Verification of the global gyrokinetic stellarator code XGC-S for linear ion temperature gradient driven modes

Abstract

XGC (X-point Gyrokinetic Code) is a whole-volume, total-f gyrokinetic particle-in-cell code developed for modelling tokamaks.In recent work, XGC has been extended to model more general 3D toroidal magnetic configurations, such as stellarators.These improvements have resulted in the XGC-S version.In this paper, XGC-S is benchmarked in the reduced delta-f limit for linear electrostatic ion temperature gradient-driven microinstabilities, which can underlie turbulent transport in stellarators.An initial benchmark of XGC-S in tokamak geometry shows good agreement with the XGC1, ORB5, and global GENE codes.A benchmark between XGC-S and the EUTERPE global gyrokinetic code for stellarators has also been performed, this time in geometry of the optimised stellarator Wendelstein 7-X.Good agreement has been found for the mode number spectrum, mode structure, and growth rate.

Authors:
; ; ; ; ; ; ; ;
Publication Date:
Product Type:
Dataset
Research Org.:
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Sponsoring Org.:
U. S. Department of Energy
OSTI Identifier:
1562103
DOI:
10.11578/1562103

Citation Formats

M, Cole, R, Hager, T, Moritaka, J, Dominski, R, Kleiber, S, Ku, S, Lazerson, J, Riemann, and C, Chang. Verification of the global gyrokinetic stellarator code XGC-S for linear ion temperature gradient driven modes. United States: N. p., 2019. Web. doi:10.11578/1562103.
M, Cole, R, Hager, T, Moritaka, J, Dominski, R, Kleiber, S, Ku, S, Lazerson, J, Riemann, & C, Chang. Verification of the global gyrokinetic stellarator code XGC-S for linear ion temperature gradient driven modes. United States. doi:10.11578/1562103.
M, Cole, R, Hager, T, Moritaka, J, Dominski, R, Kleiber, S, Ku, S, Lazerson, J, Riemann, and C, Chang. 2019. "Verification of the global gyrokinetic stellarator code XGC-S for linear ion temperature gradient driven modes". United States. doi:10.11578/1562103. https://www.osti.gov/servlets/purl/1562103. Pub date:Thu Aug 01 00:00:00 EDT 2019
@article{osti_1562103,
title = {Verification of the global gyrokinetic stellarator code XGC-S for linear ion temperature gradient driven modes},
author = {M, Cole and R, Hager and T, Moritaka and J, Dominski and R, Kleiber and S, Ku and S, Lazerson and J, Riemann and C, Chang},
abstractNote = {XGC (X-point Gyrokinetic Code) is a whole-volume, total-f gyrokinetic particle-in-cell code developed for modelling tokamaks.In recent work, XGC has been extended to model more general 3D toroidal magnetic configurations, such as stellarators.These improvements have resulted in the XGC-S version.In this paper, XGC-S is benchmarked in the reduced delta-f limit for linear electrostatic ion temperature gradient-driven microinstabilities, which can underlie turbulent transport in stellarators.An initial benchmark of XGC-S in tokamak geometry shows good agreement with the XGC1, ORB5, and global GENE codes.A benchmark between XGC-S and the EUTERPE global gyrokinetic code for stellarators has also been performed, this time in geometry of the optimised stellarator Wendelstein 7-X.Good agreement has been found for the mode number spectrum, mode structure, and growth rate.},
doi = {10.11578/1562103},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {8}
}

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