Self-Excited Sloshing Due to the Fluid Discharge over a Flexible Weir: 1st Report, Excitation Mechanism of Instability in the Rectangular Model

Hiroshi Nagakura; Shigehiko Kaneko

doi:10.1299/kikaic.64.2437

Self-Excited Sloshing Due to the Fluid Discharge over a Flexible Weir: 1st Report, Excitation Mechanism of Instability in the Rectangular Model

Hiroshi Nagakura, Shigehiko Kaneko

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

This paper presents an analytical model for the fluid-elastic instability as observed in Super-Phenix-1 LMFBR. This fluid-structure system is constituted by the flexible cylindrical weir and adjoining annular fluid plenums, and the fluid is discharged from the upstream plenum to the downstream plenum over the flexible weir. In this report, to clarify the mechanism for instability, we analyzed the case in which the rectangular reservior was divided into the upstream and the downstream plenums by a flexible plate weir. The characteristic equation of the system is derived. The effects of the discharged fluid on the downstream plenum sloshing and the effects of the fluid level difference between the upstream and the downstream plenums are examined, and the mechanism for instability is discussed.

Original language	English
Pages (from-to)	2437-2445
Number of pages	9
Journal	Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
Volume	64
Issue number	623
DOIs	https://doi.org/10.1299/kikaic.64.2437
Publication status	Published - 1998
Externally published	Yes

Keywords

Fast Breeder Reactor
Overflow Weir
Self-Excited Vibration
Sloshing

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Industrial and Manufacturing Engineering

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10.1299/kikaic.64.2437

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Self-Excited Sloshing Due to the Fluid Discharge over a Flexible Weir : 1st Report, Excitation Mechanism of Instability in the Rectangular Model. / Nagakura, Hiroshi; Kaneko, Shigehiko.

In: Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C, Vol. 64, No. 623, 1998, p. 2437-2445.

Research output: Contribution to journal › Article › peer-review

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abstract = "This paper presents an analytical model for the fluid-elastic instability as observed in Super-Phenix-1 LMFBR. This fluid-structure system is constituted by the flexible cylindrical weir and adjoining annular fluid plenums, and the fluid is discharged from the upstream plenum to the downstream plenum over the flexible weir. In this report, to clarify the mechanism for instability, we analyzed the case in which the rectangular reservior was divided into the upstream and the downstream plenums by a flexible plate weir. The characteristic equation of the system is derived. The effects of the discharged fluid on the downstream plenum sloshing and the effects of the fluid level difference between the upstream and the downstream plenums are examined, and the mechanism for instability is discussed.",

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N2 - This paper presents an analytical model for the fluid-elastic instability as observed in Super-Phenix-1 LMFBR. This fluid-structure system is constituted by the flexible cylindrical weir and adjoining annular fluid plenums, and the fluid is discharged from the upstream plenum to the downstream plenum over the flexible weir. In this report, to clarify the mechanism for instability, we analyzed the case in which the rectangular reservior was divided into the upstream and the downstream plenums by a flexible plate weir. The characteristic equation of the system is derived. The effects of the discharged fluid on the downstream plenum sloshing and the effects of the fluid level difference between the upstream and the downstream plenums are examined, and the mechanism for instability is discussed.

AB - This paper presents an analytical model for the fluid-elastic instability as observed in Super-Phenix-1 LMFBR. This fluid-structure system is constituted by the flexible cylindrical weir and adjoining annular fluid plenums, and the fluid is discharged from the upstream plenum to the downstream plenum over the flexible weir. In this report, to clarify the mechanism for instability, we analyzed the case in which the rectangular reservior was divided into the upstream and the downstream plenums by a flexible plate weir. The characteristic equation of the system is derived. The effects of the discharged fluid on the downstream plenum sloshing and the effects of the fluid level difference between the upstream and the downstream plenums are examined, and the mechanism for instability is discussed.

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Self-Excited Sloshing Due to the Fluid Discharge over a Flexible Weir: 1st Report, Excitation Mechanism of Instability in the Rectangular Model

Abstract

Keywords

ASJC Scopus subject areas

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