...@ensam.eu e-mail:  farid.bakir@ensam.eu 09 06 2021 01 11 2021 07 02 2022 inducer grooved ring rotating cavitation dissolved CO 2 two-phase flow Inducers are axial turbomachines placed upstream on the same drive shaft of the impeller in centrifugal pumps...

...Yoshiki Yoshida; Hideaki Nanri; Kengo Kikuta; Yusuke Kazami; Yuka Iga; Toshiaki Ikohagi The relationship between the thermodynamic effect and subsynchronous rotating cavitation was investigated with a focus on cavity fluctuations. Experiments on a three-bladed inducer were conducted with liquid...

... cavity length and rotordynamic force in a cavitating inducer with three blades, we conducted two experiments. In one, the growth of cavity unevenness at the inception of synchronous rotating cavitation in cryogenic flow was observed, and in the other, the rotordynamic fluid forces in water were examined...

.... The relationship between the thermodynamic effect and cavitation instabilities, however, is still unknown. To investigate the influence of the thermodynamic effect on rotating cavitation appeared in the turbopump inducer, we conducted experiments in which liquid nitrogen was set at different temperatures (74 K, 78...

...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...

... the thermodynamic effect works on cavitation instabilities, such as rotating cavitation and cavitation surge. In the present study, the unsteady heat exchange between the cavity and the surrounding liquid is taken into account in a stability analysis using a singularity method. The results are qualitatively...