Airblast from Underground Explosions

Philip Hookham, Titan Research

Abstract:
Two- and three-dimensional computational fluid and solid dynamics calculations were performed to predict the airblast and dust environment for the DIVINE STRAKE high explosive field test. The DIVINE STRAKE test is planned to be a large-yield, buried burst detonated at the Nevada Test Site. The early-time airblast, crater formation, and ejecta environment were calculated using the two-dimensional CRALE code. This solution was then overlayed onto two- and three-dimensional MAZe code computational meshes. The MAZe calculations simulated the airblast environment as well as the propagation of the dusty environment produced by the ejecta and subsequent dust sweep-up. The airblast environment will be compared to test measurements when they become available, while the predicted dust environment will be used to aid in planning of the test.

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