High-speed stereo-observations of violent vibrations associated with three types of cavitation

Hironori Naka; Hitoshi Soyama; Kentaro Sakagami; Risaburo Oba; Masahiro Yamabe

doi:10.1299/jsmeb.38.66

High-speed stereo-observations of violent vibrations associated with three types of cavitation

Hironori Naka, Hitoshi Soyama, Kentaro Sakagami, Risaburo Oba, Masahiro Yamabe

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

1 Citation (Scopus)

Abstract

In order to improve the reliability of high-speed hydraulic machinery, detailed behavior of the violent vibrations appearing on a typically low-drag Eppler foil is systematically observed by means of high-speed stereophotography. We can clearly observe the following three types of violent vibrations: (i) the vibrations resulting from a singly-attached cavity, usually arising at a higher incidence α_i, (ii) ones resulting from large travelling bubbles arising at a lower incidence, (iii) a mixture of these two types.

Original language	English
Pages (from-to)	66-72
Number of pages	7
Journal	JSME International Journal, Series B: Fluids and Thermal Engineering
Volume	38
Issue number	1
DOIs	https://doi.org/10.1299/jsmeb.38.66
Publication status	Published - 1995
Externally published	Yes

ASJC Scopus subject areas

Mechanical Engineering
Physical and Theoretical Chemistry
Fluid Flow and Transfer Processes

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abstract = "In order to improve the reliability of high-speed hydraulic machinery, detailed behavior of the violent vibrations appearing on a typically low-drag Eppler foil is systematically observed by means of high-speed stereophotography. We can clearly observe the following three types of violent vibrations: (i) the vibrations resulting from a singly-attached cavity, usually arising at a higher incidence αi, (ii) ones resulting from large travelling bubbles arising at a lower incidence, (iii) a mixture of these two types.",

author = "Hironori Naka and Hitoshi Soyama and Kentaro Sakagami and Risaburo Oba and Masahiro Yamabe",

year = "1995",

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AU - Oba, Risaburo

AU - Yamabe, Masahiro

PY - 1995

Y1 - 1995

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AB - In order to improve the reliability of high-speed hydraulic machinery, detailed behavior of the violent vibrations appearing on a typically low-drag Eppler foil is systematically observed by means of high-speed stereophotography. We can clearly observe the following three types of violent vibrations: (i) the vibrations resulting from a singly-attached cavity, usually arising at a higher incidence αi, (ii) ones resulting from large travelling bubbles arising at a lower incidence, (iii) a mixture of these two types.

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High-speed stereo-observations of violent vibrations associated with three types of cavitation

Abstract

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