Jet Structure Analyses on High-Speed Submerged Water Jets through Cavitation Noises

Yasunori Adachi; Hitoshi Soyama; Yoshiaki Yamauchi; Kazunori Sato; Toshiaki Ikohagi; Risaburo Oba

doi:10.1299/kikaib.60.2665

Jet Structure Analyses on High-Speed Submerged Water Jets through Cavitation Noises

Yasunori Adachi, Hitoshi Soyama, Yoshiaki Yamauchi, Kazunori Sato, Toshiaki Ikohagi, Risaburo Oba

ENG - Finemechanics

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

Abstract

In order to establish a useful monitoring method for predicting the erosion induced by high-speed submerged water jets, we attempt to clarify the relation between the jet-structure and the cavitation noise arising around the free jets, by using two hydrophones, and also analyze the AE characteristics of the impulsive pressures induced by cavitation on the specimen of the impinging jets. It is found that the energies of high-frequency components in the jets change markedly with the injection pressure and the standoff distance. It is found that the AE characteristics are closely related to the impinging erosion.

Original language	English
Pages (from-to)	2665-2670
Number of pages	6
Journal	Transactions of the Japan Society of Mechanical Engineers Series B
Volume	60
Issue number	576
DOIs	https://doi.org/10.1299/kikaib.60.2665
Publication status	Published - 1994

Keywords

Acoustic Emission
Cavitation
Erosion
Jet
Noise
Submerged Water Jet

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering

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title = "Jet Structure Analyses on High-Speed Submerged Water Jets through Cavitation Noises",

abstract = "In order to establish a useful monitoring method for predicting the erosion induced by high-speed submerged water jets, we attempt to clarify the relation between the jet-structure and the cavitation noise arising around the free jets, by using two hydrophones, and also analyze the AE characteristics of the impulsive pressures induced by cavitation on the specimen of the impinging jets. It is found that the energies of high-frequency components in the jets change markedly with the injection pressure and the standoff distance. It is found that the AE characteristics are closely related to the impinging erosion.",

keywords = "Acoustic Emission, Cavitation, Erosion, Jet, Noise, Submerged Water Jet",

author = "Yasunori Adachi and Hitoshi Soyama and Yoshiaki Yamauchi and Kazunori Sato and Toshiaki Ikohagi and Risaburo Oba",

year = "1994",

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TY - JOUR

T1 - Jet Structure Analyses on High-Speed Submerged Water Jets through Cavitation Noises

AU - Adachi, Yasunori

AU - Soyama, Hitoshi

AU - Yamauchi, Yoshiaki

AU - Sato, Kazunori

AU - Ikohagi, Toshiaki

AU - Oba, Risaburo

PY - 1994

Y1 - 1994

N2 - In order to establish a useful monitoring method for predicting the erosion induced by high-speed submerged water jets, we attempt to clarify the relation between the jet-structure and the cavitation noise arising around the free jets, by using two hydrophones, and also analyze the AE characteristics of the impulsive pressures induced by cavitation on the specimen of the impinging jets. It is found that the energies of high-frequency components in the jets change markedly with the injection pressure and the standoff distance. It is found that the AE characteristics are closely related to the impinging erosion.

AB - In order to establish a useful monitoring method for predicting the erosion induced by high-speed submerged water jets, we attempt to clarify the relation between the jet-structure and the cavitation noise arising around the free jets, by using two hydrophones, and also analyze the AE characteristics of the impulsive pressures induced by cavitation on the specimen of the impinging jets. It is found that the energies of high-frequency components in the jets change markedly with the injection pressure and the standoff distance. It is found that the AE characteristics are closely related to the impinging erosion.

KW - Acoustic Emission

KW - Cavitation

KW - Erosion

KW - Jet

KW - Noise

KW - Submerged Water Jet

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