The difference between deflagration and detonation flame arresters
- Detonation is different from deflagration as it is supersonic and propagates through shock. Detonation involves a supersonic exothermic front accelerating through a medium that eventually drives a shock front propagating directly in front of it. Detonations are observed in both conventional solid and liquid explosives as well as in reactive gases. Gaseous detonations normally occur in confined systems but are occasionally observed in large vapour clouds. They are often associated with a gaseous mixture of fuel and oxidant of a composition, somewhat below conventional flammability limits.