72 citations
- Seoul National UniversityKR6 papers
- Korea Advanced Institute of Science and TechnologyKR5 papers
- Princeton Plasma Physics LaboratoryUS5 papers
- CEA CadaracheFR4 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR4 papers
- Pohang University of Science and TechnologyKR4 papers
- Princeton UniversityUS4 papers
- General Atomics (United States)US3 papers
- Max Planck Institute for Plasma PhysicsDE3 papers
- University of California San DiegoUS3 papers
- Chalmers University of TechnologySE2 papers
- Columbia UniversityUS2 papers
34 papers
Gyrokinetic simulations on zonal flow-turbulence spreading coupling
Min Ki Jung, Sumin Yi, Taik Soo Hahm +1
Zonal flows and turbulence spreading play important roles in magnetic fusion plasma confinement, yet their coupling mechanisms remain elusive. Using global nonlinear gyrokinetic si…
Friction-induced scale-selection in the extended Cahn-Hilliard model for zonal staircase
M. Leconte, T. S. Hahm
In this work, we describe a possible mechanism to set the radial scale of zonal flows, which may be applicable to the staircase found in the global full-f simulations…
Inhomogeneous mixing: From microscopic dynamics to mesoscopic staircases
T. Long, M. J. Choi, P. H. Diamond
Inhomogeneous mixing and the consequent mesoscopic layered structure have been observed in many physical systems, including magnetically confined fusion plasmas. Especially, in pla…
Control of pedestal-top electron density using RMP and gas puff at KSTAR
Minseok Kim, S. K. Kim, A. Rothstein +20
We report the experimental results of controlling the pedestal-top electron density by applying resonant magnetic perturbation with the in-vessel control coils and the main gas puf…
TorbeamNN: Machine learning based steering of ECH mirrors on KSTAR
Andrew Rothstein, Minseok Kim, Minho Woo +12
We have developed TorbeamNN: a machine learning surrogate model for the TORBEAM ray tracing code to predict electron cyclotron heating and current drive locations in tokamak plasma…
Gyrokinetic simulations of the effects of magnetic islands on microturbulence in KSTAR
Xishuo Wei, Javier H Nicolau, Gyungjin Choi +8
Gyrokinetic simulations are utilized to study effects of magnetic islands on the ion temperature gradient (ITG) turbulence in the KSTAR tokamak with resonant magnetic perturbations…