138 citations · 2k across the 82 of their papers we have counts for
8 papers · 1 filter
Assessing global ion thermal confinement in critical-gradient-optimized stellarators
A. Bañón Navarro, G. T. Roberg-Clark, G. G. Plunk +4
We investigate the confinement properties of two recently devised quasi-helically symmetric stellarator configurations, HSK and QSTK. Both have been optimized for large critical gr…
Physics-Preserving AI-Accelerated Simulations of Plasma Turbulence
Robin Greif, Frank Jenko, Nils Thuerey
Turbulence in fluids, gases, and plasmas remains an open problem of both practical and fundamental importance. Its irreducible complexity usually cannot be tackled computationally…
Magnetic flutter effect on validated edge turbulence simulations
Kaiyu Zhang, Wladimir Zholobenko, Andreas Stegmeir +2
Small magnetic fluctuations () are intrinsically present in a magnetic confinement plasma due to turbulent currents. While the perpendicular transport of part…
Reassessing the impact of megaelectronvolt ions in fusion plasmas via gyrokinetic simulations
Alessandro Di Siena, Gabriele Merlo, Alejandro Banon Navarro +2
Gyrokinetic simulations conducted by Mazzi et al. reveal the suppression of turbulence in fusion plasmas through the destabilization of Toroidal Alfvén Eigenmodes (TAEs) by megaele…
Epistemic and Aleatoric Uncertainty Quantification and Surrogate Modelling in High-Performance Multiscale Plasma Physics Simulations
Yehor Yudin, David Coster, Udo von Toussaint +1
This work suggests several methods of uncertainty treatment in multiscale modelling and describes their application to a system of coupled turbulent transport simulations of a toka…
Fast transport simulations with higher-fidelity surrogate models for ITER
J. Citrin, P. Trochim, T. Goerler +3
A fast and accurate turbulence transport model based on quasilinear gyrokinetics is developed. The model consists of a set of neural networks trained on a bespoke quasilinear GENE…