Thermodynamic effects on cavitation performances and cavitation instabilities in an inducer

Yoshiki Yoshida; Kengo Kikuta; Mitsuo Watanabe; Tomoyuki Hashimoto; Katsuji Nagaura; Katsuhide Ohira

doi:10.1299/kikaib.73.14

Thermodynamic effects on cavitation performances and cavitation instabilities in an inducer

Yoshiki Yoshida, Kengo Kikuta, Mitsuo Watanabe, Tomoyuki Hashimoto, Katsuji Nagaura, Katsuhide Ohira

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

Abstract

In the present study, we focused on the length of the tip cavitation as a cavitation parameter for experimental investigations of the thermodynamic effect on a cavitating inducer. Comparison of the length of tip cavity in liquid nitrogen (76 K and 80 K) with that in cold water (296 K) allowed us to estimate the strength of the thermodynamic effect. In addition, unstable cavitation phenomena occur when the cavity length develops over the throat. Sub-synchronous rotating cavitation appears both in liquid nitrogen and in cold water. In contrast, cavitation surge appears only in cold water at a lower cavitation number. From these experimental results, thermodynamic effects on cavitation performances and cavitation instabilities were discussed.

Original language	English
Pages (from-to)	14-21
Number of pages	8
Journal	Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume	73
Issue number	1
DOIs	https://doi.org/10.1299/kikaib.73.14
Publication status	Published - 2007 Jan
Externally published	Yes

Keywords

Cavitating inducer
Cavitation instability
Cavity length
Thermodynamic effect

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering

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10.1299/kikaib.73.14

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Thermodynamic effects on cavitation performances and cavitation instabilities in an inducer. / Yoshida, Yoshiki; Kikuta, Kengo; Watanabe, Mitsuo; Hashimoto, Tomoyuki; Nagaura, Katsuji; Ohira, Katsuhide.

In: Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 73, No. 1, 01.2007, p. 14-21.

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

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abstract = "In the present study, we focused on the length of the tip cavitation as a cavitation parameter for experimental investigations of the thermodynamic effect on a cavitating inducer. Comparison of the length of tip cavity in liquid nitrogen (76 K and 80 K) with that in cold water (296 K) allowed us to estimate the strength of the thermodynamic effect. In addition, unstable cavitation phenomena occur when the cavity length develops over the throat. Sub-synchronous rotating cavitation appears both in liquid nitrogen and in cold water. In contrast, cavitation surge appears only in cold water at a lower cavitation number. From these experimental results, thermodynamic effects on cavitation performances and cavitation instabilities were discussed.",

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AU - Nagaura, Katsuji

AU - Ohira, Katsuhide

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Thermodynamic effects on cavitation performances and cavitation instabilities in an inducer

Abstract

Keywords

ASJC Scopus subject areas

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