Physics-constrained, low-dimensional models for magnetohydrodynamics: First-principles and data-driven approaches

AA Kaptanoglu, KD Morgan, CJ Hansen, SL Brunton - Physical Review E, 2021 - APS
Plasmas are highly nonlinear and multiscale, motivating a hierarchy of models to
understand and describe their behavior. However, there is a scarcity of plasma models of …

First demonstration of full ELM suppression in low input torque plasmas to support ITER research plan using n= 4 RMP in EAST

Y Sun, Q Ma, M Jia, S Gu, A Loarte, Y Liang… - Nuclear …, 2021 - iopscience.iop.org
Full suppression of type-I edge localized modes (ELMs) using n= 4 resonant magnetic
perturbations (RMPs) as planned for ITER has been demonstrated for the first time (n is the …

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 …

Influence of triangularity on the plasma response to resonant magnetic perturbations

S Gu, C Paz-Soldan, YQ Liu, Y Sun, BC Lyons… - Nuclear …, 2022 - iopscience.iop.org
The effect of the axisymmetric plasma shape on the non-axisymmetric plasma response to
resonant magnetic perturbations is investigated in experiment and modeling for the DIII-D …

Nonlinear two-fluid modeling of plasma response to RMPs for the ELM control in the ITER baseline

QM Hu, JK Park, NC Logan, SM Yang… - Nuclear …, 2021 - iopscience.iop.org
Numerical modeling, combining the toroidal ideal MHD code GPEC and the nonlinear two-
fluid MHD code TM1, was used for comprehensive studies of the plasma response to …

Toroidal modeling of plasma response to RMP fields for HL-2M

GZ Hao, CY Li, YQ Liu, HT Chen, S Wang, X Bai… - Nuclear …, 2021 - iopscience.iop.org
The plasma response to the n= 1, 2, 4 (n is the toroidal mode number) resonant magnetic
perturbation (RMP) fields, and the consequences on the fast ion confinement, are …

Effects of edge-localized electron cyclotron current drive on edge-localized mode suppression by resonant magnetic perturbations in DIII-D

QM Hu, NC Logan, Q Yu, A Bortolon - Nuclear Fusion, 2024 - iopscience.iop.org
According to recent DIII-D experiments (Logan et al 2024 Nucl. Fusion64 014003), injecting
edge localized electron cyclotron current drive (ECCD) in the counter-plasma-current …

Validation of density pump-out by pedestal-foot magnetic island formation prior to ELM suppression in KSTAR and DIII-D tokamaks

QM Hu, JK Park, SM Yang, SK Kim, NC Logan… - Nuclear …, 2023 - iopscience.iop.org
TM1 nonlinear two-fluid simulations reveal key characteristics of density pump-out caused
by pedestal-foot island formation when applying resonant magnetic perturbation (RMP) …

Plasma response to resonant magnetic perturbations near rotation zero-crossing in low torque plasmas

P Xie, Y Sun, Y Liu, S Gu, Q Ma, C Ye, X Wu… - Physics of …, 2021 - pubs.aip.org
The plasma response to resonant magnetic perturbations (RMPs) near the pedestal top is
crucial for accessing edge localized modes (ELMs) suppression in tokamaks. Since the …

Suppression of Edge Localized Modes in ITER Baseline Scenario in EAST using Edge Localized Magnetic Perturbations

P Xie, Y Sun, M Jia, A Loarte, YQ Liu, C Ye… - arXiv preprint arXiv …, 2024 - arxiv.org
We report the suppression of Type-I Edge Localized Modes (ELMs) in the EAST tokamak
under ITER baseline conditions using $ n= 4$ Resonant Magnetic Perturbations (RMPs) …