Numerical calculations of pressure oscillations in a side-dump ramjet engine

Pressure oscillations in a side-dump ramjet engine \nhave been studied, using a one-dimensional numerical \nanalysis. The engine is treated in two parts; the inlet \nsection, including a region of two-phase flow downstream \nof fuel injection, and a dump combustor. Each \nregion is treated separately and matched with the \nother. Following calculation of the mean flow field, the \noscillatory characteristics of the engine are determined \nby its reponse to a disturbance imposed on the \nmean fiow. Results have shown favorable comparison \nwith experimental data obtained at the Naval Weapons \nCenter, China Lake.