Nonlinear gyrokinetic simulations of reversed shear Alfven eigenmodes in DIII-D tokamak
Global gyrokinetic simulations of reversed shear Alfven eigenmodes (RSAE) excited by
energetic particles (EP) in the DIII-D discharge# 159,243 find that self-generated zonal flows …
energetic particles (EP) in the DIII-D discharge# 159,243 find that self-generated zonal flows …
Stability optimization of energetic particle driven modes in nuclear fusion devices: the FAR3d gyro-fluid code
The development of reduced models provide efficient methods that can be used to perform
short term experimental data analysis or narrow down the parametric range of more …
short term experimental data analysis or narrow down the parametric range of more …
ATEP: an advanced transport model for energetic particles
In this paper we report on the implementation and verification of a phase-space resolved
energetic particle (EP) transport model. It is based on a first-principle theoretical framework …
energetic particle (EP) transport model. It is based on a first-principle theoretical framework …
Saturation of fishbone instability by self-generated zonal flows in tokamak plasmas
Gyrokinetic simulations of the fishbone instability in DIII-D tokamak plasmas find that self-
generated zonal flows can dominate the nonlinear saturation by preventing coherent …
generated zonal flows can dominate the nonlinear saturation by preventing coherent …
MAS: A versatile Landau-fluid eigenvalue code for plasma stability analysis in general geometry
We have developed a new global eigenvalue code, multiscale analysis for plasma stabilities
(MAS), for studying plasma problems with wave toroidal mode number (n) and frequency (ω) …
(MAS), for studying plasma problems with wave toroidal mode number (n) and frequency (ω) …
Deep learning based surrogate models for first-principles global simulations of fusion plasmas
The accurate identification and control of plasma instabilities is important for successful
fusion experiments. First-principle simulations that can provide physics-based instability …
fusion experiments. First-principle simulations that can provide physics-based instability …
Cross-scale interaction between microturbulence and meso-scale reversed shear Alfvén eigenmodes in DIII-D plasmas
This paper reports global nonlinear gyrokinetic simulations that couple meso-scale reversed
shear Alfvén eigenmodes (RSAEs) driven by energetic particles (EPs) and ion temperature …
shear Alfvén eigenmodes (RSAEs) driven by energetic particles (EPs) and ion temperature …
Reconstruction of tokamak plasma safety factor profile using deep learning
The motional Stark effect (MSE) diagnostic has been a standard measurement for the
magnetic field line pitch angle in tokamaks that are equipped with neutral beams. However …
magnetic field line pitch angle in tokamaks that are equipped with neutral beams. However …
Key feature identification of internal kink mode using machine learning
H Ning, S Lou, J Wu, T Zhou - Frontiers in Physics, 2024 - frontiersin.org
The internal kink mode is one of the crucial factors affecting the stability of magnetically
confined fusion devices. This paper explores the key features influencing the growth rate of …
confined fusion devices. This paper explores the key features influencing the growth rate of …
[HTML][HTML] Large-database cross-verification and validation of tokamak transport models using baselines for comparison
State-of-the-art 1D transport solvers ASTRA and TRANSP are verified, then validated across
a large database of semi-randomly selected, time-dependent DIII-D discharges. Various …
a large database of semi-randomly selected, time-dependent DIII-D discharges. Various …