Abstract
In this work we present two- and three-dimensional mesoscale simulations of detonation initiation in energetic materials. We solve the reactive Euler equations, with the energy equation augmented by a power deposition term. The deposition term is based on simulations of void collapse at the microscale, modelled at the mesoscale as hot-spots. The reaction rate at the mesoscale is modelled using density-based kinetics. We show that transition between no-detonation and detonation depends on the post-shock pressure of an imposed shock, the packing fraction, and the number density of the hot-spots.
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