Macro kinetics for combustion in non-uniform dispersed fuel-air mixtures

The paper presents the results of theoretical, numerical and experimental investigations of combustion and detonation initiation in heterogeneous poly-dispersed mixtures. The problems of fuel droplets atomization, evaporation and combustion and the non-equilibrium effects in droplets atomization and phase transitions were taken into account. The effects of droplets size non-uniformity and spatial distribution non-uniformity on mixture ignition and flame acceleration were investigated for strong and mild initiation of detonation: by a shock wave and spark ignition followed by deflagration to detonation transition (DDT). Peculiarities of jet injection and ignition in reaction chamber are studied.