Non-linear calculation of rotating cavitation in inducers

Y. Tsujimoto, K. Kamijo, S. Watanabe, Y. Yoshida

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)


In the previous linear analysis it was found that there can be a backward rotating cavitation as well as a forward mode which rotates faster than impeller. Although some shaft vibration has been observed which might be caused by the backward mode, experimental evidence has been obtained only for the forward mode. The ultimate goal of the present study is to answer the question which mode of the cavitation instabilities - cavitation surge and the two modes of rotating cavitation - occurs in a given system and operating condition, and to find out analytical method to determine their amplitude. A time marching non-linear 2-D flow analysis was carried out for this purpose. It was found that the increase of cavitation compliance at lower inlet pressure can be a factor which limits the amplitude. The mode selectivity is mainly dependent on the stability limit obtained by a linear analysis for which the phase delay of cavity has a most important effect.

Original languageEnglish
Title of host publicationCavitation and Multiphase Flow
PublisherPubl by ASME
Number of pages6
ISBN (Print)0791813776
Publication statusPublished - 1994
Externally publishedYes
EventProceedings of the 1994 ASME Fluids Engineering Division Summer Meeting. Part 9 (of 18) - Lake Tahoe, NV, USA
Duration: Jun 19 1994Jun 23 1994

Publication series

NameAmerican Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED


OtherProceedings of the 1994 ASME Fluids Engineering Division Summer Meeting. Part 9 (of 18)
CityLake Tahoe, NV, USA

All Science Journal Classification (ASJC) codes

  • Engineering(all)


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