A Two-Dimensional Numerical Study of Detonation Propagation between Munitions by Means of Shock Initiation.
ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD
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Computations of the flow field resulting when a munition is detonated adjacent to an identical neighbor have been made using the two-dimensional, eulerian, reactive hydrodynamic computer code, 2DE. The code was used to predict the effects of donor initiation site, interrround separation distance, and shielding. The results indicate that a very complicated flow field is produced that far-side initiation of the donor represents a worst case that, for rounds separated only by an air space, the shock initiation hazard is maximum at an intermediate interround separation that even very thin plastic shields which fill the space between the rounds are remarkably effective in reducing the shock initiation hazard and that when the explosive sensitivity is sufficiently reduced the acceptor is no longer initiated by buildup of the principal shock. The potential usefulness of 2DE in predicting shock initiation has been evaluated.
- Ammunition and Explosives
- Fluid Mechanics