Phenomenon of Deflagration to Detonation in Pulse Detonation Engine

Abstract

A self-sustained wave of chemical reaction propagating through a gaseous explosive mixture is one of the most basic manifestations of gaseous combustion and hence the central issue of interest in combustion science. The phenomenon in which the wave of flame front travels at sub-sonic velocity due to combustion is called Deflagaration while the phenomenon in which the propagation of flame front takes place at high speed due to sudden auto ignition in the combustion chamber is called Detonation. This both terms Deflagration and Detonation are of great interest for researchers as both can produce energy in efficient way . A large number of theoretical , Experimental study has taken place in order to understand basic mechanism of transition from Deflagration to Detonation.