The effect of carbon monoxide on the detonation ability of the hydrogen-air mixture during shock wave focusing

In this paper, the results of a research of the effect of carbon monoxide on the detonation ability of a hydrogen-air mixture were presented. Experiments on focusing shock waves on various conical reflectors in mixtures containing 15 % and 20 % of the total volume fraction of fuel were carried out. It was found that for the same amount of fuel, an increase in the proportion of CO when diluting the hydrogen-air mixture leads to a nonlinear decrease in the detonation ability of the mixture. The results of three-dimensional computational modeling of shock wave focusing processes in the considered hydrogen-air mixtures diluted with CO were also presented. The computational model was refined by comparing the simulation results with experimental data. Good agreement with experiment was obtained.