..., and their suction performance tended to improve as the cavity blockage decreased. As a parallel focus, an in-depth analysis of cavitation surge and pressure gain was presented with the head drop slope for the other three ellipse sets. The numerical results included the off-design flow rate points and were validated...

... the influence of flow gain on the onset condition of cavitation surge for the default parameters shown in Table 1 , with the zero gradient of the suction performance curve S p  = 0. The region of cavitation surge is widened with the increase of flow gain. This suggests that the positive flow gain causes...

...Yuka Iga; Kei Hashizume; Yoshiki Yoshida In the present study, numerical analysis of a cavitating three-blade cyclic flat-plate cascade was performed considering cavitation surge, which is a type of cavitation instability in pumping machinery. A numerical method employing a uniquely developed gas...

...Toshiya Kimura; Yoshiki Yoshida; Tomoyuki Hashimoto; Mitsuru Shimagaki Unsteady cavitation phenomena such as rotating cavitation and cavitation surge are often observed in a turbopump inducer of a rocket engine, sometimes causing undesirable oscillation of the system. Investigation...