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 PO04: Hohlraum and X-ray Cavity Physics
2:00 PM–4:48 PM,
Wednesday, October 19, 2022
Room: Ballroom 111 A
Chair: Dave Strozzi, LLNL; Steve MacLaren, LLNL
Abstract: PO04.00006 : Developing an Infrastructure for Automated Tuning of Hohlraum Simulations*
3:00 PM–3:12 PM
Presenter:
Ryan S Lester
(Los Alamos National Laboratory)
Authors:
Ryan S Lester
(Los Alamos National Laboratory)
Brian M Haines
(Los Alamos National Laboratory)
Joshua P Sauppe
(Los Alamos National Laboratory)
John Kuczek
(Los Alamos National Laboratory)
ignition1. Recent advances2 in the Los Alamos radiation-hydrodyamics code xRAGE3,4 have
enabled it to model the integrated hohlraum and implosion dynamics as seen in these
experiments.
xRAGE’s Eulerian hydrodynamics and adaptive mesh refinement provide the unique ability to
study the impacts of multiscale features in hohlraums, such as capsule support tents. The
improvements to xRAGE’s capability that enable the user to model hohlraums include
advancements to heat transfer, 3T equation of state and Non-Local Thermal Equilibrium (NLTE)
physics.
This study will aim to develop an automated methodology for hohlraum simulations within
xRAGE. We will explore how various methodologies for simulating integrated capsule and
hohlraum setups can enable the development of tools in the pursuit of an automated tuning setup
for future hohlraum models to match experimental data.
1 D. Callahan et al., “Achieving a Burning Plasma on the National Ignition Facility (NIF) Laser,” Bulletin of the
American Physical Society AR01.00001 (2021).
2 B. Haines et al., “The development of a high-resolution Eulerian radiation-hydrodynamics simulation capability for
laser-driven hohlraums,” Phys. Plasmas, submitted (2022).
3 M. Gittings et al., “The RAGE radiation-hydrodynamics code,” Comput. Sci. & Discov. 1:015005 (2008).
4 B. Haines et al, “High resolution modeling of indirectly-driven high-convergence layered inertial confinement
fusion capsule implosions,” Phys. Plasmas 24:072709 (2017).
**This work was performed by the Los Alamos National Laboratory, operated by Triad National Security,LLC for the National Nuclear Security Administration (NSSA) of the U.S. Department of Energy (DOE) under Contract No. 89233218CNA000001.
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