Abstract
A numerical simulation of the interaction of detonation waves with an obstacle having orifices and an analysis of the results were performed. The calculations were conducted using the 3D GasDynamicTool code for a model gas with parameters of detonation corresponding to a hydrogen-air stoichiometric mixture under normal conditions. Within the framework of the assumptions made, it was shown that, upon interaction with a perforated partition, a detonation wave experiences disintegration accompanied by the formation of unsteady jets of detonation products, with each one being preceded by a shock wave. The simulations demonstrated that the reinitiation of detonation downstream from the partition is determined by the dynamics of the ignition caused by the interaction between the converging shock waves formed ahead of the jets outflowing from neighboring orifices.
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