The supersonic 6-nozzle ejector performance has been investigated experimentally for the given geometric dimensions.The experiment ranges over 1 98≤ P * P/P * S≤7 46,0 971≤T * p≤T * s ≤1 02 and L m/D m =0 80.The entrainment ratio x varies from 6 96 to 11 66 for the ejector with a diffuser,and its corrected value xT * s/T * p varies from 6 88 to 11 62;on the other hand,the entrainment ratio varies from 2 82 to 6 28 for the ejector without the diffuser,and its corrected ...