The paper presents results of studies of influence of relatively large chemically inert particles dispersed in a gaseous mixture on transition to detonation processes and on detonation combustion. It has been found out that these particles cause acceleration of transition from deflagration to detonation, and reduce the detonation velocity. A physical model of the transition to detonation and propagation of the detonation under such conditions has been presented. Also mathematical model allowing determination of velocity of the detonation wave has been proposed.
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