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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 modeling tokamaks. Recently, XGC has been extended to model more general 3D toroidal magnetic configurations, such as stellarators. These improvements have concluded 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, here in the geometry of the optimized stellarator Wendelstein 7-X. Good agreement has been discovered for the mode number spectrum, mode structure, and growth rate.

Authors:
ORCiD logo [1]; ORCiD logo [1];  [2]; ORCiD logo [1];  [3]; ORCiD logo [1]; ORCiD logo [1];  [3]; ORCiD logo [1]
  1. Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
  2. National Inst. for Fusion Science, Toki (Japan)
  3. Max Planck Inst. for Plasma Physics, Greifswald (Germany)
Publication Date:
Research Org.:
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Sponsoring Org.:
USDOE; National Energy Research Scientific Computing Center (NERSC)
OSTI Identifier:
1547057
Alternate Identifier(s):
OSTI ID: 1545962; OSTI ID: 1572702
Grant/Contract Number:  
AC02-05CH11231; AC02-09CH11466
Resource Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 26; Journal Issue: 8; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats

Cole, M. D. J., Hager, R., Moritaka, T., Dominski, J., Kleiber, R., Ku, S., Lazerson, S., Riemann, J., and Chang, C. S. Verification of the global gyrokinetic stellarator code XGC-S for linear ion temperature gradient driven modes. United States: N. p., 2019. Web. doi:10.1063/1.5109259.
Cole, M. D. J., Hager, R., Moritaka, T., Dominski, J., Kleiber, R., Ku, S., Lazerson, S., Riemann, J., & Chang, C. S. Verification of the global gyrokinetic stellarator code XGC-S for linear ion temperature gradient driven modes. United States. doi:10.1063/1.5109259.
Cole, M. D. J., Hager, R., Moritaka, T., Dominski, J., Kleiber, R., Ku, S., Lazerson, S., Riemann, J., and Chang, C. S. Thu . "Verification of the global gyrokinetic stellarator code XGC-S for linear ion temperature gradient driven modes". United States. doi:10.1063/1.5109259.
@article{osti_1547057,
title = {Verification of the global gyrokinetic stellarator code XGC-S for linear ion temperature gradient driven modes},
author = {Cole, M. D. J. and Hager, R. and Moritaka, T. and Dominski, J. and Kleiber, R. and Ku, S. and Lazerson, S. and Riemann, J. and Chang, C. S.},
abstractNote = {XGC (X-point Gyrokinetic Code) is a whole-volume, total-f gyrokinetic particle-in-cell code developed for modeling tokamaks. Recently, XGC has been extended to model more general 3D toroidal magnetic configurations, such as stellarators. These improvements have concluded 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, here in the geometry of the optimized stellarator Wendelstein 7-X. Good agreement has been discovered for the mode number spectrum, mode structure, and growth rate.},
doi = {10.1063/1.5109259},
journal = {Physics of Plasmas},
number = 8,
volume = 26,
place = {United States},
year = {2019},
month = {8}
}

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