Studies on Cavitation Occurring on the Runner Blade of a Darrieus-Type Water Turbine

Yasuo Takamatsu; Akinori Furukawa; Kusuo Ōkuma; Kazuki Takenouchi; Toshihiko Sasaki; Guo Hua Zhao

doi:10.1299/kikaib.56.2008

Studies on Cavitation Occurring on the Runner Blade of a Darrieus-Type Water Turbine

Yasuo Takamatsu, Akinori Furukawa, Kusuo Ōkuma, Kazuki Takenouchi, Toshihiko Sasaki, Guo Hua Zhao

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

Abstract

Cavitation tests were carried out on a Darrieus-type cross-flow water turbine, which would be in practical use for small water power. In the present paper, cavitation phenomena occurring on the Darrieus runner with various blade sections are explained and the characteristics of the incident cavitation coefficient for the attack angles in relative flow around the Darrieus blades are also evaluated with theoretical considerations of the difference between the circular motion of the Darrieus blades and the linear motion of those in a uniform steady flow. As the result, a useful method is proposed for estimating the retired net positive suction head (NPSH) of a Darrieus-type water turbine.

Original language	English
Pages (from-to)	2008-2013
Number of pages	6
Journal	Transactions of the Japan Society of Mechanical Engineers Series B
Volume	56
Issue number	527
DOIs	https://doi.org/10.1299/kikaib.56.2008
Publication status	Published - 1990
Externally published	Yes

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanical Engineering

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10.1299/kikaib.56.2008

Cite this

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title = "Studies on Cavitation Occurring on the Runner Blade of a Darrieus-Type Water Turbine",

abstract = "Cavitation tests were carried out on a Darrieus-type cross-flow water turbine, which would be in practical use for small water power. In the present paper, cavitation phenomena occurring on the Darrieus runner with various blade sections are explained and the characteristics of the incident cavitation coefficient for the attack angles in relative flow around the Darrieus blades are also evaluated with theoretical considerations of the difference between the circular motion of the Darrieus blades and the linear motion of those in a uniform steady flow. As the result, a useful method is proposed for estimating the retired net positive suction head (NPSH) of a Darrieus-type water turbine.",

author = "Yasuo Takamatsu and Akinori Furukawa and Kusuo Ōkuma and Kazuki Takenouchi and Toshihiko Sasaki and Zhao, {Guo Hua}",

year = "1990",

doi = "10.1299/kikaib.56.2008",

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T1 - Studies on Cavitation Occurring on the Runner Blade of a Darrieus-Type Water Turbine

AU - Takamatsu, Yasuo

AU - Furukawa, Akinori

AU - Ōkuma, Kusuo

AU - Takenouchi, Kazuki

AU - Sasaki, Toshihiko

AU - Zhao, Guo Hua

PY - 1990

Y1 - 1990

N2 - Cavitation tests were carried out on a Darrieus-type cross-flow water turbine, which would be in practical use for small water power. In the present paper, cavitation phenomena occurring on the Darrieus runner with various blade sections are explained and the characteristics of the incident cavitation coefficient for the attack angles in relative flow around the Darrieus blades are also evaluated with theoretical considerations of the difference between the circular motion of the Darrieus blades and the linear motion of those in a uniform steady flow. As the result, a useful method is proposed for estimating the retired net positive suction head (NPSH) of a Darrieus-type water turbine.

AB - Cavitation tests were carried out on a Darrieus-type cross-flow water turbine, which would be in practical use for small water power. In the present paper, cavitation phenomena occurring on the Darrieus runner with various blade sections are explained and the characteristics of the incident cavitation coefficient for the attack angles in relative flow around the Darrieus blades are also evaluated with theoretical considerations of the difference between the circular motion of the Darrieus blades and the linear motion of those in a uniform steady flow. As the result, a useful method is proposed for estimating the retired net positive suction head (NPSH) of a Darrieus-type water turbine.

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Studies on Cavitation Occurring on the Runner Blade of a Darrieus-Type Water Turbine

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