Theoretical investigations on detonation onset peculiarities in polydispersed hydrocarbon−air mixtures

Combustion and detonation processes in sprays differ greatly from that in homogeneous mixtures, because not only chemical reactions, but physical processes of combustible mixture formation take place within the combustion zone (droplets atomization and evaporation). The polydispersed character of mixture and non-uniformity of droplet spatial distribution strongly affects spray combustion and detonation onset. The paper presents the results of theoretical investigations of combustion and detonation initiation in heterogeneous polydispersed hydrocarbon–air mixtures.

Keywords:

Combustion , Detonation , Droplet , Onset