5 papers
Divertor topology and vacuum vessel design for stellarators
Andrew Giuliani, Raffael Wendlinger, Misha Padidar +4
We present stellarator optimization algorithms for designing the edge magnetic structure in vacuum fields, together with the vacuum vessel. First, we introduce a numerical method t…
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
We present magnetic configurations in the Helically Symmetric eXperiment (HSX) and Wendelstein 7-X (W7-X), in which the edge magnetic structure is dominated by island chains which…
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…
Stellarator divertor design by optimizing coils for surfaces with sharp corners
Todd Elder, Matt Landremann, Christoper B. Smiet +1
In stellarators, achieving effective divertor configurations is challenging due to the three-dimensional nature of the magnetic fields, which often leads to chaotic field lines and…
The topology of non-resonant stellarator divertors
Robert Davies, Christopher B. Smiet, Alkesh Punjabi +2
We apply topological methods to better understand how the magnetic field in the stellarator edge can be diverted away from the confined region. Our primary method is calculating th…