Abstract
The Cylindrical Converging Shock Tube is a novel explosion technology used to drive a shock or detonation wave through a core material at high velocity. The system contains an inner core and outer explosive annulus separated with an inner metal liner. Axial detonation of the annular explosive transmits a centrally converging shock in the form of a Mach stem into the core. With a slight modification to a Cylindrical Converging Shock Tube, a super compression detonation shock tube can be created which can provide a reactive core velocity of over 10km/s by overdriving the annular explosive. An internal core pressure of several hundred gigapascal (GPa) can be produced depending on the item's geometry and core material properties. The study first examines the pressure fields in an inert PMMA core and then repeats the simulation for a reactive multiphase material of HMX/Al-W to identify the dynamics of an inert particle laden core. This study uses a Eulerian-to–Lagrangian conversion method to describe the particle dynamics occurring within the core.
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