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

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

研究成果: Contribution to journalArticle査読

抄録

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.

本文言語英語
ページ(範囲)688-695
ページ数8
ジャーナルNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
67
655
DOI
出版ステータス出版済み - 3 2001

All Science Journal Classification (ASJC) codes

  • 凝縮系物理学
  • 機械工学

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