DETONATION COMBUSTION OF A HYDROGEN–AIR MIXTURE WITH ADDITIVES OF ARGON AND OZONE

Using a detailed kinetic mechanism of chemical interaction, the eff ect of adding argon and ozone to a stoichiometric hydrogen–air mixture on the detonation wave parameters was studied numerically. It has been established that the mole fractions of the used additions can be chosen so that the cell size of the detonation wave in the resulting mixture will be close to the average cell size in a pure hydrogen–air mixture, with the wave velocity and temperature of the detonation products being reduced signifi cantly. It has been found that the detonation wave in a mixture with additives in selected concentrations is more stable against perturbations caused by multiple obstacles (barriers) located in the channel than in the initial mixture. The found specifi c features make it possible to consider the introduction of the indicated additives into the combustible mixture as a mechanism that lowers the temperature in the detonation wave without a signifi cant increase in the detonation cell size and that prevents the extinction of detonation combustion in a channel with a number of barriers
Using a detailed kinetic mechanism of chemical interaction, the eff ect of adding argon and ozone to a stoichiometric hydrogen–air mixture on the detonation wave parameters was studied numerically. It has been established that the mole fractions of the used additions can be chosen so that the cell size of the detonation wave in the resulting mixture will be close to the average cell size in a pure hydrogen–air mixture, with the wave velocity and temperature of the detonation products being reduced signifi cantly. It has been found that the detonation wave in a mixture with additives in selected concentrations is more stable against perturbations caused by multiple obstacles (barriers) located in the channel than in the initial mixture. The found specifi c features make it possible to consider the introduction of the indicated additives into the combustible mixture as a mechanism that lowers the temperature in the detonation wave without a signifi cant increase in the detonation cell size and that prevents the extinction of detonation combustion in a channel with a number of barriers
Author:  V. A. Levin, T. A. Zhuravskaya
Keywords:  detonation, stoichiometric hydrogen–air mixture, cellular detonation structure, argon, ozone, multiple obstacles
Page:  1759