Investigation of Heterogeneous Detonation Wave Interaction with Porous Medium

Mathematical model of aluminum heterogeneous detonation interaction with inert porous media was developed. Main regimes of interaction of heterogeneous detonation wave of stoichiometric mixture of aluminum particles in oxygen with porous inserts were studied. One- and two-dimensional calculations for micron and submicron particles and comparison of these calculations were made. Main regimes of detonation interaction with porous zone and critical conditions of detonation attenuation in porous zones were obtained. Calculations show that for micron particles reducing the diameter of burning particles lead to increasing the volume concentration of inert phase in the porous body that needs for detonation attenuation. Main difference of the propagation regimes for micron and submicron aluminum particles was found.

Automated summary

A mathematical model of aluminum heterogeneous detonation interacting with inert porous media was developed. The main interaction regimes between the detonation wave of aluminum particles in oxygen and porous inserts were studied. One- and two-dimensional calculations were conducted for micron and submicron particles, and a comparison was made. The main regimes of detonation interaction with porous zones and the critical conditions for detonation attenuation in porous zones were obtained. The calculations showed that reducing the diameter of burning particles led to an increased volume concentration of inert phase in the porous body for micron particles, which is necessary for detonation attenuation. A main difference in propagation regimes between micron and submicron aluminum particles was found.