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SPECIFIC FEATURES OF DETONATION PROPAGATION IN SMALL CROSS-SECTION CHANNELS FOR THE PETN-BASED COMPOSITION

V. B. Titova, N. A. Volodina, M. O. Shirshova, E. V. Khaldeev, Y. M. Sustaeva
VANT. Ser.: Mat. Mod. Fiz. Proc 2024. Вып.1. С. 30-36.

The works to study the processes of detonation wave propagation in the channels equipped with PETN-based (pentraerythritoltetranitrate) composition are currently underway to upgrade the systems of detonation initiation in experimental setups with explosives.
This paper studies specific features of the detonation wave propagation in the small-cross-section channels using model experiments with numerical simulation in the ideal and kinematic approximations. It shows the necessity to account for detonation kinetics in such computations. As a result of the computational analysis, we obtained a characteristic picture of the detonation propagation when the detonation wave follows the shadow zone, and the size of the shadow zone region is estimated after the detonation wave passes the turn of the channel.

Keywords: detonation kinetics, PETN, channels interconnections, numerical simulation.








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