Suppression of the Detonation Wave with the Aid of a Multi-Component Particle Cloud
A. M. Tahsini
School of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran
Keywords: юдетонационная волна, соударение, многокомпонентное облако частиц, численное моделирование, подавление, detonation wave, impact, multi-component cloud of particles, numerical simulation, suppression
Abstract
The aim of this study is to investigate the effect of diversity of particles in the downstream cloud on detonation wave suppression. The multi-component two-phase model for a reacting compressible flow field including clouds of chemically inert solid particles is utilized here. The detonation wave is simulated in a stoichiometric hydrogen and oxygen mixture using a detailed full chemistry model. The finite volume scheme is used in the developed numerical program, where the advection upstream splitting method is used in addition to the Saurel method for the multi-particle cloud in order to compute the particle-phase and gas-phase fluxes. The impact of the detonation wave on the rigid wall is investigated, and the magnitude of the resulting pressure rise is accurately predicted in the case of a head-on collision of two similar waves instead of direct simulation of the wall reflection. The results demonstrate that the impact pressure rise is rather strong and destructive, and using a multi-component particle cloud may have better attenuating features for both short and long action times and require a shorter required propagation length for detonation wave suppression than using a single-component particle cloud.
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