Studies on cavitation occurring on the runner blade of a darrieus-type water turbine

Yasuo Takamatsu; Akinori Furukawa; Kusuo Okuma; Kazuki Takenouchi; Toshihiko Sasaki; Guo hua Zhao

doi:10.1299/jsmeb1988.35.1_46

Studies on cavitation occurring on the runner blade of a darrieus-type water turbine

Yasuo Takamatsu, Akinori Furukawa, Kusuo Okuma, Kazuki Takenouchi, Toshihiko Sasaki, Guo hua Zhao

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

8 Citations (Scopus)

Abstract

Cavitation tests were carried out on a Darrieus-type cross-flow water turbine which could be put into 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 required net positive suction head (NPSH) of a Darrieus-type water turbine.

Original language	English
Pages (from-to)	46-52
Number of pages	7
Journal	JSME International Journal, Series 2: Fluids Engineering, Heat Transfer, Power, Combustion, Thermophysical Properties
Volume	35
Issue number	1
DOIs	https://doi.org/10.1299/jsmeb1988.35.1_46
Publication status	Published - 1992

All Science Journal Classification (ASJC) codes

Mechanical Engineering
Physical and Theoretical Chemistry
Fluid Flow and Transfer Processes

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abstract = "Cavitation tests were carried out on a Darrieus-type cross-flow water turbine which could be put into 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 required net positive suction head (NPSH) of a Darrieus-type water turbine.",

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AU - Takamatsu, Yasuo

AU - Furukawa, Akinori

AU - Okuma, Kusuo

AU - Takenouchi, Kazuki

AU - Sasaki, Toshihiko

AU - Zhao, Guo hua

PY - 1992

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N2 - Cavitation tests were carried out on a Darrieus-type cross-flow water turbine which could be put into 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 required 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 could be put into 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 required 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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