Gyrokinetic understanding of the edge pedestal transport driven by resonant magnetic perturbations in a realistic divertor geometry

Hager, R. ; Chang, C. S. ; Ferraro, N. M. ; Nazikian, R.
Issue date: 2020
Rights:
Creative Commons Attribution 4.0 International (CC BY)
Cite as:
Hager, R., Chang, C. S., Ferraro, N. M., & Nazikian, R. Gyrokinetic understanding of the edge pedestal transport driven by resonant magnetic perturbations in a realistic divertor geometry [Data set]. Princeton Plasma Physics Laboratory, Princeton University. https://doi.org/10.11578/1661170
@electronic{hager_r_unknown,
  author      = {Hager, R. and
                Chang, C. S. and
                Ferraro, N. M. and
                Nazikian, R.},
  title       = {{Gyrokinetic understanding of the edge pe
                destal transport driven by resonant magn
                etic perturbations in a realistic divert
                or geometry}},
  publisher   = {{Princeton Plasma Physics Laboratory, Pri
                nceton University}},
  url         = {https://doi.org/10.11578/1661170}
}
Description:

Self-consistent simulations of neoclassical and electrostatic turbulent transport in a DIII-D H-mode edge plasma under resonant magnetic perturbations (RMPs) have been performed using the global total-f gyrokinetic particle-in-cell code XGC, in order to study density-pump out and electron heat confinement.The RMP field is imported from the extended magneto-hydrodynamics (MHD) code M3D-C1, taking into account the linear two-fluid plasma response.With both neoclassical and turbulence physics considered together, the XGC simulation reproduces two key features of experimentally observed edge transport under RMPs: increased radial particle transport in the pedestal region that is sufficient to account for the experimental pump-out rate, and suppression of the electron heat flux in the steepest part of the edge pedestal.In the simulation, the density fluctuation amplitude of modes moving in the electron diamagnetic direction increases due to interaction with RMPs in the pedestal shoulder and outward, while the electron temperature fluctuation amplitude decreases.

Show More
# Filename Filesize
1 README.txt 554 Bytes
2 ARK_DATA.zip 21.2 MB