Theoretical analysis of unsteady fluid forces working on inducer blades under rotating cavitation

Satoshi Watanabe, Hironori Horiguchi, Akinori Furukawa, Junichiro Fukutomi, Yoshinobu Tsujimoto

Research output: Contribution to journalArticlepeer-review


Rotating cavitation is one of the flow instabilities associated with cavitation, which has been a severe problem for the development of turbopumps of liquid rocket engines because of causing the destructive super-synchronous shaft vibration. Recently, it is argued that rotating cavitation might also induce large repetitive stresses on blades in accordance with the unsteady pressure due to the significant change of cavitating regions. This paper describes about the theoretical prediction of unsteady blade forces working on the cavitating inducer under rotating cavitation. Unsteady pressure distributions and a lift force for a 2-dimensitional flat plate cascade under rotating cavitation are calculated by the linearized free streamline theory based on the unsteady closed cavity model and singularity method.

Original languageEnglish
Pages (from-to)688-695
Number of pages8
JournalNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Issue number655
Publication statusPublished - Mar 2001

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering


Dive into the research topics of 'Theoretical analysis of unsteady fluid forces working on inducer blades under rotating cavitation'. Together they form a unique fingerprint.

Cite this