Self-excited sloshing due to the fluid discharge over a flexible plate weir

Hiroshi Nagakura, Shigehiko Kaneko

Research output: Contribution to journalArticle

4 Citations (Scopus)


This paper presents an analytical model for the self-excited sloshing due to the fluid discharge over a flexible weir, as observed in the cooling circuit of the French fast breeder reactor, Super-Phenix-1. To clarify the instability mechanism, we analyzed the case in which a rectangular reservoir was divided into an upstream and a downstream plenum by a flexible plate weir. The kinematic and dynamic effects of the discharged fluid on downstream plenum sloshing are discussed in details. Calculatiions are presented for the rectangular fluid-structure model with successively increasing fluid level difference between the upstream and downstream plenums, and the instability mechanism is examined.

Original languageEnglish
Pages (from-to)192-197
Number of pages6
JournalJournal of Pressure Vessel Technology, Transactions of the ASME
Issue number2
Publication statusPublished - 2000 May 1
Externally publishedYes


ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality
  • Mechanics of Materials
  • Mechanical Engineering

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