Scalable Computational Tools for Predicting Fluid-Structure Interactions in Laser Directed Energy Applications

Robert Nourgaliev | 19-ERD-015

Executive Summary

We will develop the necessary capabilities for simulating laser-driven directed energy physics, including material heating, melting, degradation in the target area, and interaction with external, high-speed fluid flows. This research will significantly impact the field of computational modeling of fluid-structure interactions in the defense application space, as well as laser-based advanced manufacturing, through the development of state-of-the-art scalable algorithms for high-performance computing and tightly coupled multiphysics.

Publications, Presentations, and Patents

Barney, R. 2020. "Physics of Unstable Stratification in Mixed-Convection Flow of Water in the Supercritical Thermodynamic State.” MIT Lincoln Lab Seminar, Boston, MA, February 2020. LLNL-PRES-805138

Barney, R., et al. 2020. "On Hydrodynamic Instabilities in Pseudo-Boiling with Supercritical Fluids.” 72nd Annual Meeting of the APS Division of Fluid Dynamics, Seattle, WA, November 2019. LLNL-PRES-797741

Corrigan, A., et al. 2020. "A Moving Discontinuous Galerkin Method with Interface Condition Enforcement for Multi-Material Flows.” MultiMat, Trento, Italy, September 2019. LLNL-PRES-796238

Nourgaliev, R. and A. Corrigan. 2020. "High-Order Implicit Shock Fitting for Multimaterial Shock Dynamics Problems using Space-Time Finite-Element Formulation.” DPD WIP (online), Livermore, CA, July 2020. LLNL-PRES-812666