Diffuser a short overall length for high pressure ratio in the subsonic range and a process for the conversion of kinetic energy into pressure

摘要

A short, wide angle diffuser having means for preventing boundary layer separation is disclosed. The means includes means for injecting a fluid stream into the diffuser at preselected locations for mixing with the boundary layer fluid. The injected fluid may be derived from the fluid exiting from the diffuser and fed back into the diffuser.