PHYSICOMATHEMATICAL MODELING OF DETONATION SUPPRESSION BY INERT PARTICLES IN METHANE-OXYGEN AND METHANE-HYDROGEN-OXYGEN MIXTURES
D. A. Tropin, A. V. Fedorov
Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
Keywords: detonation suppression, detailed chemical kinetics, methane-oxygen mixture
Abstract
Based on the developed physicomathematical model of detonation attenuation and suppression in a methane-oxygen mixture by means of addition of a cloud of inert particles, the influence of the volume fraction of particles and their diameter on the detonation wave velocity is analyzed. Detonation limits in terms of the volume fraction of particles in methane-oxygen and methane-hydrogen-oxygen mixtures are found. A comparison with our previous data on suppression of detonation in a hydrogen-oxygen mixture shows that the critical volume fractions of particles resulting in detonation wave suppression in the methane-hydrogen-oxygen mixture are greater than those in the hydrogen oxygen mixture.
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