Mechanism of self-excited vibration of a falling water sheet

Hiroki Mori, Takuo Nagamine, Ryo Ito, Yuichi Sato

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


This paper describes experimental and analytical study on the behavior of a falling water sheet. The observation of water sheet displacement and air pressure variation in the chamber implies that one of the causes of oscillation is downward squeeze action of a water sheet on an air chamber. We propose a simplified analytical model. Analytical results agree well with experimental ones. Further analytical results explain the occurrence of multiple modes of oscillation in a condition. In addition, we explain the instability mechanism using the work done by a falling water sheet on an enclosed chamber.

Original languageEnglish
Pages (from-to)2720-2732
Number of pages13
JournalNihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
Issue number792
Publication statusPublished - 2012
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering


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