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

Cole, M. ; Hager, R. ; Moritaka, T.; Dominski, J. ; Kleiber, R.; Ku, S. ; Lazerson, S. ; Riemann, J.; Chang, C.
Issue date: 2019
Rights:
Creative Commons Attribution 4.0 International (CC BY)
Cite as:
Cole, M., Hager, R., Moritaka, T., Dominski, J., Kleiber, R., Ku, S., Lazerson, S., Riemann, J., & Chang, C. (2019). Verification of the global gyrokinetic stellarator code XGC-S for linear ion temperature gradient driven modes [Data set]. Princeton Plasma Physics Laboratory, Princeton University. https://doi.org/10.11578/1562103
@electronic{cole_m_2019,
  author      = {Cole, M. and
                Hager, R. and
                Moritaka, T. and
                Dominski, J. and
                Kleiber, R. and
                Ku, S. and
                Lazerson, S. and
                Riemann, J. and
                Chang, C.},
  title       = {{Verification of the global gyrokinetic s
                tellarator code XGC-S for linear ion tem
                perature gradient driven modes}},
  publisher   = {{Princeton Plasma Physics Laboratory, Pri
                nceton University}},
  year        = 2019,
  url         = {https://doi.org/10.11578/1562103}
}
Description:

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.

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