Improvements to a simple reacting hydride particle model
ORAL
Abstract
Ejecta particles form after a shock wave impacts a metal plate with a known roughness or prescribed surface perturbation. If these particles are ejected into a non-inert gas, exothermic reactions may occur and raise the temperature of the particle. Previous work developed a simple model for cerium ejecta particles with many limiting assumptions. Improvements to the model have been made to include full two-way momentum, mass, and energy coupling between the two phases along with a variable outer diameter. The results change slightly, but overall confirm the limiting assumptions originally used during development. Additional considerations for numerical stability are implemented to increase the overall robustness of the model. Approved for unlimited release: LA-UR-21-27383.
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Presenters
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Jonathan D Regele
Los Alamos National Laboratory, XCP-4 Continuum Models and Numerical Methods, Los Alamos National Laboratory
Authors
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Jonathan D Regele
Los Alamos National Laboratory, XCP-4 Continuum Models and Numerical Methods, Los Alamos National Laboratory
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Frederick Ouellet
Los Alamos National Laboratory