Numerical Analysis of Direct Detonation Initiation Processes in a $H_2-O_2$-Ar Mixture for Pulse Detonation Engine Applications

PDE 응용을 위한 $H_2-O_2$-Ar 혼합물에서의 직접 기폭 과정에 대한 수치 해석

The present paper reports high-fidelity simulation of direct initiation processes of cylindrical detonation waves by concentrated energy deposition. The goal is to understand the underpinning mechanisms in failed or successful detonation initiation processes. We employed the Space-Time CESE method to solve the reacting flow equations, including realistic finite-rate chemistry model of the nine species and twenty-four reactions for H$_2$-O$_2$-Ar mixtures. Detailed results of sub-critical, critical. and supercritical initiation process are reported.