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DOE OSTI · 3012244

Experimental platforms for investigating feature-driven jets for HED mix model validation

Allen, Cameron Howard [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000294172318)·Rasmus, Alexander Martin [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000193001034)·Levesque, Joseph Maurice [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000309529974)·Merritt, Elizabeth Catherine [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000290260070)·Pellone, Samuel Louis [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)]·Flippo, Kirk Adler [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000247525141)·Christiansen, Nikolaus Scott [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)]·Di Stefano, Carlos A. [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000161663519)·Donovan, Patrick Mark [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)]·Lavelle, Joseph Daniel [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)]·Love, Kevin Noble [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000301238320)·Martinez, John Israel [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000178943541)·Schmidt, Derek William [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000269690973)·Stringfield, Samuel Justus [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)]·Wilson, Christopher Talker [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000310119649)·Doss, Forrest William [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000307296257)
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Abstract

High-energy-density (HED) systems, such as inertial confinement fusion (ICF), are susceptible to hydrodynamic instabilities that can significantly affect both experimental results and modeling predictions. Isolated features, such as fill tubes or divots in the capsule, can cause material to jet as a result of the compressive shock exciting the Richtmyer–Meshkov instability, and serve as one of the primary degradation mechanisms in ICF yield. Simulations of feature-driven jets and how they mix require extensive experimental validation, particularly for understanding to what degree the initial size and shape of a feature influence jet dynamics, and how much instability feeds through downstream layers. A better understanding of feature-driven jetting can improve our mix modeling capabilities and increase hydrodynamic simulation accuracy. This manuscript describes a series of experimental platforms fielded by Los Alamos National Laboratory as a part of the Mshock Omega 60 and ModCons Omega EP campaigns to explore feature-driven jetting. These platforms are designed to benchmark jet evolution and growth as a function of initial feature size and shape, investigate jet-layer interactions leading to instability feedthrough, and will be used to characterize jet-jet interactions resulting from clusters of features. In conclusion, preliminary results for both platforms are shown. The ModCons experiments are on-going, and a discussion of future work directions is included.

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70 PLASMA PHYSICS AND FUSION TECHNOLOGYFeature-driven jettingRichtmyer–MeshkovSingle shock

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Allen, Cameron Howard [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000294172318), Rasmus, Alexander Martin [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000193001034), Levesque, Joseph Maurice [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000309529974), Merritt, Elizabeth Catherine [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000290260070), Pellone, Samuel Louis [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)], Flippo, Kirk Adler [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000247525141), Christiansen, Nikolaus Scott [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)], Di Stefano, Carlos A. [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000161663519), Donovan, Patrick Mark [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)], Lavelle, Joseph Daniel [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)], Love, Kevin Noble [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000301238320), Martinez, John Israel [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000178943541), Schmidt, Derek William [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000269690973), Stringfield, Samuel Justus [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)], Wilson, Christopher Talker [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000310119649), Doss, Forrest William [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000307296257). 2025-12-29. Experimental platforms for investigating feature-driven jets for HED mix model validation. https://doi.org/10.1016/j.hedp.2025.101260

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