Abstract Details
Abstracts
Author: Stefan Buller
Requested Type: Poster
Submitted: 2025-03-14 16:36:29
Co-authors:
Contact Info:
Princeton University
112 Nassau Street
Princeton, New Jersey 08542
US
Abstract Text:
Recent progress in stellarator optimization has produced various numerical equilibria which drastically improve upon one or a few performance metrics, such as low neoclassical or turbulent transport, low fast-particle losses, low coil complexity, magnetohydrodynamic (MHD) stability.
In this work, we present a family of finite-beta quasiaxisymmetric (QA) stellarators that combine excellent quasisymmetry with infinite-n ideal-ballooning stability and self-consistent bootstrap current. We will investigate to which extent gyrokinetic ITG turbulence optimization is in conflict with the ideal-ballooning stability objective, and present results of nonlinear JOREK3D simulations for equilibria that have been optimized for varying degrees of ideal-ballooning stability.
ACKNOWLEDGEMENTS:
This research was supported by he Department of Energy Award No. DE-SC0024548. Computational work used resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy Office of Science User Facility using NERSC award FES-ERCAP0027271. Additional computations were performed on the the HPC systems Viper & Raven at the Max Planck Computing and Data Facility. SB thanks Rahul Gaur and Dario Panici for help with the DESC code.
Characterization: 1.0
Comments:
If possible, please place the poster with other HiFiStell poster presenters (such as Wrick Sengupta).