Nonlinear dynamics of pulsating detonation wave with two-stage chemical kinetics in the shock-attached frame

The paper contributes to the clarification of the mechanism of one-dimensional pulsating detonation wave propagation for the transition regime with two-scale pulsations. For this purpose, a novel numerical algorithm has been developed for the numerical investigation of the gaseous pulsating detonation wave using the two-stage model of kinetics of chemical reactions in the shock-attached frame. The influence of grid resolution, approximation order and the type of rear boundary conditions on the solution has been studied for four main regimes of detonation wave propagation for this model. Comparison of dynamics of pulsations with results of other authors has been carried out.

NUMERICAL SIMULATION OF DETONATION WAVE PROPAGATION IN THE NONUNIFORM MEDIAIN THE SHOCK-ATTACHED FRAME

The dynamics of detonation wave (DW) propagation in a medium characterized by nonuniform distribution of parameters is a problem relevant to detonation engines.