From the 2 of 5 linked papers with an AI index.
5 papers
SPECTRE: A robust solver for 3D equilibria with arbitrary topology
E. Balkovic, J. Loizu, E. Lanti +6
SPECTRE is a new computational code that solves three‑dimensional plasma equilibrium problems with arbitrary magnetic topology using a multi‑region relaxed MHD model and a trust‑re…
Computational studies of giant edge islands and unpaired X-points in HSX and W7-X by manipulating coil currents
Robert Davies, Dieter Boeyaert, Alexis Wolfmeister +3
The authors show that lowering specific coil currents in the HSX and W7‑X stellarators creates unusually large edge magnetic island chains and unpaired X‑points, and they use the E…
Characterisation of X- and O-points in Wendelstein 7-X with respect to coil currents
Robert Davies, Christopher B. Smiet, Charlotte Batzdorf +3
This work analyses vacuum magnetic field topology in Wendelstein 7-X (W7-X) with respect to changes in the current in the superconducting coils. We develop a fast automated scheme…
A comparison of low-n Mercier unstable Wendelstein stellarators and quasi-interchange modes in tokamaks
Rohan Ramasamy, Haowei Zhang, Joachim Geiger +5
Mercier's criterion is typically enforced as a hard operational limit in stellarator design. At the same time, past experimental and numerical studies have shown that this limit ma…
Velocity modulations in view of the elliptical approach at Wendelstein 7-X
A. Krämer-Flecken, X. Han, G. Weir +11
The estimation of the poloidal velocity of the turbulence and the poloidal mean flow velocity are important quantities for the study of sheared flows on turbulence and transport. T…