39 citations · 87 across the 7 of their papers we have counts for
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Mitigation of Initial Transients in Total-f Gyrokinetic Turbulence Simulations Using Neoclassically Relaxed Distribution Function
S. Ku, R. Hager, C. S. Chang +2
Total-f five-dimensional gyrokinetic simulations are essential for self-consistent studies of multiscale, multiphysics transport in the edge region of diverted tokamak plasmas. How…
A toroidally spectral field solver in the X-point Gyrokinetic Code for accurate simulation of reduced magneto-hydrodynamic modes
Robert Hager, C. S. Chang, Thomas Gade +5
A new field solver has been implemented in the global electromagnetic total- gyrokinetic particle-in-cell code XGC to extend the code's capability to large-scale reduced MHD-typ…
Broadening of the Divertor Heat Flux Profile in High Confinement Tokamak Fusion Plasmas with Edge Pedestals Limited by Turbulence in DIII-D
D. R. Ernst, A. Bortolon, C. S. Chang +16
Multi-machine empirical scaling predicts an extremely narrow heat exhaust layer in future high magnetic field tokamaks, producing high power densities that require mitigation. In t…
Electromagnetic total-f algorithm for gyrokinetic particle-in-cell simulations of boundary plasma in XGC
Robert Hager, Seung-Hoe Ku, A. Y. Sharma +2
The simplified delta-f mixed-variable/pull-back electromagnetic simulation algorithm implemented in XGC for core plasma simulations by M. Cole et al. [Phys. Plasmas 28, 034501 (202…
Verification of long wavelength electromagnetic modes with a gyrokinetic-fluid hybrid model in the XGC code
Robert Hager, Jianying Lang, Choong-Seock Chang +4
As an alternative option to kinetic electrons, the gyrokinetic total-f particle-in-cell (PIC) code XGC1 has been extended to the MHD/fluid type electromagnetic regime by combining…
Kinetic modeling of divertor heat load fluxes in the Alcator C-Mod and DIII-D tokamaks
A. Y. Pankin, T. Rafiq, A. H. Kritz +8
The guiding-center kinetic neoclassical transport code, XGC0, [C.S. Chang et. al, Phys. Plasmas 11, 2649 (2004)] is used to compute the heat fluxes and the heat-load width in the o…