Overview of recent progress in 3D field physics in KSTAR

G Park, Y In, JK Park, WH Ko, J Lee, M Kim… - Journal of the Korean …, 2022 - Springer
Various 3D field physics challenges of magnetically confined plasmas arise when the
driving source comes from either externally applied non-axisymmetric 3D magnetic …

Predicting operational windows of ELMs suppression by resonant magnetic perturbations in the DIII-D and KSTAR tokamaks

QM Hu, R Nazikian, NC Logan, JK Park… - Physics of …, 2021 - pubs.aip.org
ABSTRACT A newly developed plasma response model, combining the nonlinear two-fluid
MHD code TM1 and toroidal MHD code GPEC run in ideal mode, quantitatively predicts the …

Localizing resonant magnetic perturbations for edge localized mode control in KSTAR

SM Yang, JK Park, NC Logan, C Zhu, Q Hu… - Nuclear …, 2020 - iopscience.iop.org
An external 3D magnetic perturbation typically drives a resonant response at the rational
surfaces from the core to the edge of tokamak plasmas, due to strong mode coupling and …

Quasisymmetric optimization of nonaxisymmetry in tokamaks

JK Park, SM Yang, NC Logan, Q Hu, C Zhu… - Physical Review Letters, 2021 - APS
Predictive 3D optimization reveals a novel approach to modify a nonaxisymmetric magnetic
perturbation to be entirely harmless for tokamaks, by essentially restoring quasisymmetry in …

Cooling flow regime of a plasma thermal quench

Y Zhang, J Li, XZ Tang - Europhysics Letters, 2023 - iopscience.iop.org
A large class of Laboratory, Space, and Astrophysical plasmas is nearly collisionless. When
a localized energy or particle sink, for example, in the form of a radiative cooling spot or a …

Physics basis for design of 3D coils in tokamaks

NC Logan, C Zhu, JK Park, SM Yang, Q Hu - Nuclear Fusion, 2021 - iopscience.iop.org
Recent progress in 3D tokamak modeling is now leveraged to create a conceptual design of
new external 3D field coils for the DIII-D tokamak. In this work generalized perturbed …

Modeling of toroidal momentum transport induced by neoclassical toroidal viscosity torque for ITER scenarios

XT Yan, YW Sun, L Li, YQ Liu, NN Bao, A Loarte… - Nuclear …, 2023 - iopscience.iop.org
Neoclassical toroidal viscosity (NTV) torque caused by resonant magnetic perturbation
(RMP) and the induced toroidal momentum transport are investigated for International …

Identification of multiple eigenmode growth rates towards real time detection in DIII-D and KSTAR tokamak plasmas

T Liu, ZR Wang, MD Boyer, S Munaretto… - Nuclear …, 2021 - iopscience.iop.org
The successful application of three-dimensional (3D) magnetohydrodynamic (MHD)
spectroscopy enables us to identify the multi-mode eigenvalues in DIII-D and KSTAR …

Study of the spectrum effect on the threshold of resonant magnetic perturbation penetration on J-TEXT

MAO Feiyue, W Nengchao, Z Huang… - Plasma Science and …, 2022 - iopscience.iop.org
The spectrum effect on the penetration of resonant magnetic perturbation (RMP) is studied
with upgraded in-vessel RMP coils on J-TEXT. The poloidal spectrum of the RMP field …

NTVTOK-ML: Fast surrogate model for neoclassical toroidal viscosity torque calculation in tokamaks based on machine learning methods

XT Yan, NN Bao, CY Zhao, YW Sun, YT Meng… - Computer Physics …, 2025 - Elsevier
Abstract The Neoclassical Toroidal Viscosity (NTV) torque is a crucial source of toroidal
momentum in tokamaks, exerting significant influence on plasma instability and …