Two-dimensional numerical simulation for ignition of pulse detonation engine

Two-dimensional Euler equations and Korobeinikov's two-step detonation model were used to study the strong ignition of pulse detonation engine.Small regions of high pressure and temperature unburnt reactants were used to simulate the electric sparks used in experiments.Simulation showed that the energy of electric sparks was too weak to directly trigger a detonation.The detonation was fully established through a series of interactions and impacts of reflected shock waves.Studies indicate that shock to detonation transition process plays an important role in initiation of pulse detonation engine.