Propagation of gaseous detonation across inert layers

In rotating detonation engines and explosion accidents, may propagate in an inhomogeneous mixture with inert layers. This study focuses on propagation a stoichiometric H2/O2/N2 multiple layers normal to the direction. One- two-dimensional simulations considering detailed chemistry are conducted. The emphasis is placed assessing effects of layer reinitiation/failure, speed, cell structure size. Specifically, thickness spacing between two consecutive varied. Either reinitiation or failure across observed. It found that successful occurs only at relatively small values spacing. For each given value spacing, there critical above which fails after crossing decrease as increases. process analyzed. interaction transverse shock waves shown induce local autoignition/explosion eventually over-driven development reactive layer. averaged speed compared CJ very good agreement achieved. indicates does not affect once happens. Unlike size greatly affected by results. first time, large cellular linearly proportional observed for Besides, double formation interpreted.