Structure and propagation of Chapman — Jouget waves in a hydrogen-oxygen mixture with aluminium particles

The processes of formation and propagation of hybrid detonation plane waves in hydrogen-oxygen-argon mixtures with aluminum particles ranging in size from $3.5~\mu$m to $13~\mu$m with various loadings are numerically simulated. A physical and mathematical model of the reduced kinetics of hydrogen and aluminum combustion is used, taking into account the formation of solid oxide and gaseous suboxides. A stabilizing effect of aluminum particles on the flow, an increase in the detonation velocity and peak pressures and temperatures has been established. At the intermediate stage, temporary two-front configurations are formed. As the fronts propagate they merge the structures are transformed into single-front ones. The established Chapman — Jouguet structures and their differences from gaseous detonation structures are analyzed.