Initiation of explosive processes in hydrogen-containing gas mixtures by a multijet flow of detonation products

Explosive regimes initiated by interaction of a detonation wave with a permeable screen are studied experimentally. Possible explosive regimes that may form behind the screen are found to be detonation, deflagration-to-detonation transition, quasisteady system consisting of the shock wave and the flame front, and decaying shock wave with the flame lagging behind it. The effect of the mixture sensitivity and screen parameters on the possibility of realization of a particular explosive regime is determined; the dynamics of the explosive regimes near the screen is considered. It is demonstrated that the interaction of the system consisting of the shock wave and the flame front with the screen can lead to initiation of detonation behind the screen.