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Towards Z-Next: The Integration of Theory, Experiments, and Computational Simulation in a Bayesian Data Assimilation Framework

Maupin, Kathryn A.; Tran, Anh; Lewis, William L.; Knapp, Patrick K.; Joseph, V.R.; Wu, C.F.J.; Glinsky, Michael G.; Valaitis, Sonata V.

Making reliable predictions in the presence of uncertainty is critical to high-consequence modeling and simulation activities, such as those encountered at Sandia National Laboratories. Surrogate or reduced-order models are often used to mitigate the expense of performing quality uncertainty analyses with high-fidelity, physics-based codes. However, phenomenological surrogate models do not always adhere to important physics and system properties. This project develops surrogate models that integrate physical theory with experimental data through a maximally-informative framework that accounts for the many uncertainties present in computational modeling problems. Correlations between relevant outputs are preserved through the use of multi-output or co-predictive surrogate models; known physical properties (specifically monotoncity) are also preserved; and unknown physics and phenomena are detected using a causal analysis. By endowing surrogate models with key properties of the physical system being studied, their predictive power is arguably enhanced, allowing for reliable simulations and analyses at a reduced computational cost.

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Increased preheat energy to MagLIF targets with cryogenic cooling

Harvey-Thompson, Adam J.; Geissel, Matthias G.; Crabtree, Jerry A.; Weis, Matthew R.; Gomez, Matthew R.; Fein, Jeffrey R.; Ampleford, David A.; Awe, Thomas J.; Chandler, Gordon A.; Galloway, B.R.; Hansen, Stephanie B.; Hanson, Jeffrey J.; Harding, Eric H.; Jennings, Christopher A.; Kimmel, Mark W.; Knapp, Patrick K.; Lamppa, Derek C.; Lewis, William L.; Mangan, Michael M.; Maurer, A.; Perea, L.; Peterson, Kara J.; Porter, John L.; Rambo, Patrick K.; Robertson, Grafton K.; Rochau, G.A.; Ruiz, Daniel E.; Shores, Jonathon S.; Slutz, Stephen A.; Smith, Ian C.; Speas, Christopher S.; Yager-Elorriaga, David A.; York, Adam Y.; Paguio, R.R.; Smith, G.E.

Abstract not provided.

An overview of magneto-inertial fusion on the Z Machine at Sandia National Laboratories

Yager-Elorriaga, David A.; Gomez, Matthew R.; Ruiz, Daniel E.; Slutz, Stephen A.; Harvey-Thompson, Adam J.; Jennings, Christopher A.; Knapp, Patrick K.; Schmit, Paul S.; Weis, Matthew R.; Awe, Thomas J.; Chandler, Gordon A.; Mangan, Michael M.; Myers, Clayton E.; Fein, Jeffrey R.; Geissel, Matthias G.; Glinsky, Michael E.; Hansen, Stephanie B.; Harding, Eric H.; Lamppa, Derek C.; Webster, Evelyn L.; Rambo, Patrick K.; Robertson, Grafton K.; Savage, Mark E.; Smith, Ian C.; Ampleford, David A.; Beckwith, Kristian B.; Peterson, Kara J.; Porter, John L.; Rochau, G.A.; Sinars, Daniel S.

Abstract not provided.

The Impact on Mix of Different Preheat Protocols

Harvey-Thompson, Adam J.; Geissel, Matthias G.; Jennings, Christopher A.; Weis, Matthew R.; Ampleford, David A.; Bliss, David E.; Chandler, Gordon A.; Fein, Jeffrey R.; Galloway, B.R.; Glinsky, Michael E.; Gomez, Matthew R.; Hahn, K.D.; Hansen, Stephanie B.; Harding, Eric H.; Kimmel, Mark W.; Knapp, Patrick K.; Perea, L.; Peterson, Kara J.; Porter, John L.; Rambo, Patrick K.; Robertson, Grafton K.; Rochau, G.A.; Ruiz, Daniel E.; Schwarz, Jens S.; Shores, Jonathon S.; Sinars, Daniel S.; Slutz, Stephen A.; Smith, Ian C.; Speas, Christopher S.; Whittemore, K.; Woodbury, Daniel W.; Smith, G.E.

Abstract not provided.

Progress in Implementing High-Energy Low-Mix Laser Preheat for MagLIF

Harvey-Thompson, Adam J.; Harvey-Thompson, Adam J.; Geissel, Matthias G.; Geissel, Matthias G.; Jennings, Christopher A.; Jennings, Christopher A.; Weis, Matthew R.; Weis, Matthew R.; Ampleford, David A.; Ampleford, David A.; Bliss, David E.; Bliss, David E.; Chandler, Gordon A.; Chandler, Gordon A.; Fein, Jeffrey R.; Fein, Jeffrey R.; Galloway, B.R.; Galloway, B.R.; Glinsky, Michael E.; Glinsky, Michael E.; Gomez, Matthew R.; Gomez, Matthew R.; Hahn, K.D.; Hahn, K.D.; Hansen, Stephanie B.; Hansen, Stephanie B.; Harding, Eric H.; Harding, Eric H.; Kimmel, Mark W.; Kimmel, Mark W.; Knapp, Patrick K.; Knapp, Patrick K.; Perea, L.; Perea, L.; Peterson, Kara J.; Peterson, Kara J.; Porter, John L.; Porter, John L.; Rambo, Patrick K.; Rambo, Patrick K.; Robertson, Grafton K.; Robertson, Grafton K.; Rochau, G.A.; Rochau, G.A.; Ruiz, Daniel E.; Ruiz, Daniel E.; Schwarz, Jens S.; Schwarz, Jens S.; Shores, Jonathon S.; Shores, Jonathon S.; Sinars, Daniel S.; Sinars, Daniel S.; Slutz, Stephen A.; Slutz, Stephen A.; Smith, Ian C.; Smith, Ian C.; Speas, Christopher S.; Speas, Christopher S.; Whittemore, K.; Whittemore, K.; Woodbury, Daniel W.; Woodbury, Daniel W.; Smith, G.E.; Smith, G.E.

Abstract not provided.

6 Results
6 Results