Abstract Details
Abstracts
Author: M Cianciosa
Requested Type: Consider for Invited
Submitted: 2024-04-05 16:16:51
Co-authors: J. Hanson[2], S. Hudson[3], D. Panici[4], J. Schilling[5], J. Schmitt[6], A. Ware[7], G. Woodbury Saudeau[2]
Contact Info:
Oak Ridge National Laboratory
1 Bethal Valley Rd
Oak Ridge, TN 37830
United States
Abstract Text:
It’s an exciting time for fusion. Private industry is taking the reins to realize the vision of putting fusion on the grid. Among these emerging companies, eight are focused on the stellarator concept. Three-dimensional MHD equilibrium plays a central role in the optimization necessary for these companies to make the stellarator a viable concept. A recent effort has been made for quantitative verification of the VMEC, SPEC, SIESTA, and DESC codes for fixed boundary, free boundary, and island equilibrium calculations. For many years, the free-boundary VMEC (also called NEMEC) code was the code of choice, in part because it was the only equilibrium code with this capability. Recently, SPEC has been extended to free-boundary, and even more recently so has DESC. We present quantitative verification calculations for free-boundary VMEC, SPEC, and DESC, in “classical stellarator” rotating elliptical geometry. We compare vacuum solutions against the Biot-Savart code (FOCUS) and with finite beta solutions against each other.
[1] Oak Ridge National Laboratory
[2] Auburn University
[3] Princeton Plasma Physics Laboratory
[4] Princeton University
[5] Proxima Fusion, Munich Germany
[6] Type One Energy
[7] University of Montana
Work Supported by U.S. DOE under Contracts DE-AC05-00OR22725 and DE-SC0023486, and by the support of Proxima Fusion, and Type One Energy.
Comments:
I had already submitted a poster only abstract before I was encouraged to submit for an invited. If this invited talk is granted, I would like to withdraw the other abstract.