Test research on performance of the boundary scoop pumping diffuser

A new style boundary scoop pumping diffuser was development. The essential performance had been achieved by testing through changing boundary layer ejector pumping capacity, mixing chamber clapboard length, the counterpressure, main inlet mass flux and so on. The results prove this diffuser could effectively isolate laser cavity flow field, improving wall pressure distribution. And may be attention, the diffuser length could be cut 25%, compared to the common.