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 CO05: ICF: Analytical and Computational Techniques
2:00 PM–5:00 PM,
Monday, October 17, 2022
Room: Ballroom 111 B
Chair: Joshua Sauppe, LANL
Abstract: CO05.00012 : Interface Reconstruction Using Gaussian Processes for Volume of Fluid Methods*
4:12 PM–4:24 PM
Presenter:
Adam Reyes
(University of Rochester)
Authors:
Adam Reyes
(University of Rochester)
Marissa B Adams
(University of Rochester)
Abigail Armstrong
(University of Rochester)
Kasper Moczulski
(University of Rochester)
Pericles S Farmakis
(University of Rochester)
Edward C Hansen
(University of Rochester)
Yingchao Lu
(University of Rochester)
David Michta
(University of Rochester)
Petros Tzeferacos
(University of Rochester)
using Gaussian process (GP) modeling. Interface-capturing methods, like the volume-of-
fluid method, track interfaces between fluid components by evolving the volume fraction
of components and advecting component volumes between computational cells, making
accurate reconstruction of the material interfaces on each cell crucial to the success of the
method. The nonparametric nature of GP regression naturally allows for efficient
reconstruction of interfaces on arbitrary stencils in any geometry using precomputed
weights. We demonstrate that GP-based reconstructions significantly outperform finite-
difference least-squares approaches, such as the Youngs method1, without the need for
costly iterations.
*The Flash Center acknowledges support by the U.S. DOE ARPA-Eunder Award DE-AR0001272, the National Science Foundation under Award PHY-2033925, and the U.S. DOE NNSA under Award DE-NA0003842, and Subcontracts536203 and 630138 with LANL and B632670 with LLNL. This material is based uponwork supported by the Department of Energy National Nuclear Security Administrationunder Award Number DE-NA0003856 through the Horton Fellowship.
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