14 papers
Towards joint optimization of stellarator coils and support structures
Lanke Fu, Alan A. Kaptanoglu
The support structure is an integral part of the design of nuclear fusion reactors, especially 3D stellarator devices. A practical reactor's coils and support structures must have…
Computational boundary specification in 3D fixed-boundary magnetohydrodynamic equilibrium modeling
Alan Kaptanoglu, Tobias Blickhan
Outside the core of the plasma, the plasma current and pressure rapidly transition to zero in a scrape-off or edge region or plasma-vacuum interface. However, existing tools for fi…
A flexible and differentiable coil proxy for stellarator equilibrium optimization
Lanke Fu, Dario Panici, Elizabeth Paul +2
Balancing plasma performance and coil cost is a significant challenge when designing a stellarator power plant. Most current stellarator designs are produced through two-stage opti…
Periodic Korteweg-de Vries soliton potentials generate quasisymmetric magnetic fields
W. Sengupta, N. Nikulsin, S. Buller +6
Quasisymmetry (QS) is a hidden symmetry of the magnetic field strength, B, that effectively confines charged particles in a three-dimensional toroidal plasma equilibrium. Here, we…
A proof-of-concept for automated AI-driven stellarator coil optimization with in-the-loop finite-element calculations
Alan A. Kaptanoglu, Pedro F. Gil
Finding feasible coils for stellarator fusion devices is a critical challenge of realizing this concept for future power plants. Years of research work can be put into the design o…
Data-driven methods to discover stable linear models of the helicity injectors on HIT-SIU
Zachary L. Daniel, Alan A. Kaptanoglu, Christopher J. Hansen +3
Accurate and efficient circuit models are necessary to control the power electronic circuits found on plasma physics experiments. Tuning and controlling the behavior of these circu…