Near Field Modeling of the Large Surface Explosion Coupling Experiment (LSECE)
Session: Explosion Seismology Applications and Advances [Poster]
Type: Poster
Date: 4/19/2021
Presentation Time: 11:30 AM Pacific
Description:
The Large Surface Explosion Coupling Experiment (LSECE) was conducted at Nevada National Security Site (NNSS) site in alluvium geology. The goal of the LSECE was to study the seismoacoustic wave generation for two consecutive surface chemical exposions of the same yield. The first chemical explosion was conducted on the surface and the second chemical explosion was conducted at the bottom of the crater created during the first chemical explosion. We have performed hydrocode simulations for both chemical explosions to investigate the role of the coupling factor on seismoacoustic wave generation. Also, we investigate the role of material properties for alluvium in the top layer on the energy partitioning. In these calculations we determine the fraction of the energy released in each chemical explosion which goes into seimic waves (both P-waves, S-waves and the surface waves) as well as the fraction of energy which goes into the shock waves propagating into the air. Results of the simulations can be useful for development better analytical source models for surface explosions.
Presenting Author: Oleg Y. Vorobiev
Student Presenter: No
Authors
Oleg Vorobiev Presenting Author Corresponding Author vorobiev1@llnl.gov Lawrence Livermore National Laboratory |
Sean Ford sean@llnl.gov Lawrence Livermore National Laboratory |
Kim Keehoon kim84@llnl.gov Lawrence Livermore National Laboratory |
William Walter walter5@llnl.gov Lawrence Livermore National Laboratory |
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Near Field Modeling of the Large Surface Explosion Coupling Experiment (LSECE)
Category
Explosion Seismology Applications and Advances