Bulletin of the American Physical Society
64th Annual Meeting of the APS Division of Plasma Physics
Volume 67, Number 15
Monday–Friday, October 17–21, 2022; Spokane, Washington
Session BO03: Stellarators and Helical Systems: W7-X, LHD, HSX, CTH, and Others
9:30 AM–12:18 PM,
Monday, October 17, 2022
Room: Ballroom 100 C
Chair: Andrew Ware, University of Montana
Abstract: BO03.00007 : Optimizing stellarators to the infinite-n ideal ballooning mode with an adjoint method
10:42 AM–10:54 AM
Presenter:
Rahul Gaur
(University of Maryland, College Park)
Authors:
Rahul Gaur
(University of Maryland, College Park)
Stefan Buller
(University of Maryland, College Park)
Matt Landreman
(University of Maryland)
William D Dorland
(University of Maryland Department of Physics)
One commonly uses gradient-based optimization to optimize stellarators against the ideal-ballooning mode. This can be computationally expensive for a large number of input parameters. To alleviate this, we present an adjoint method for optimizing stellarator equilibria against the ideal-ballooning mode. Our study will be focused on quasisymmetric configurations. We aim to maximize the operational beta value while ensuring ideal-ballooning stability on all surfaces. We present our results for different 3D equilibria.
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