Observations of Severely Erosive Vortex Cavitation in a Centrifugal Pump

Hitoshi Soyama; Tomoyoshi Okamura; Sumio Saito; Hiroharu Kato; Risaburo Oba

doi:10.1299/kikaib.59.1140

Observations of Severely Erosive Vortex Cavitation in a Centrifugal Pump

Hitoshi Soyama, Tomoyoshi Okamura, Sumio Saito, Hiroharu Kato, Risaburo Oba

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

Abstract

In order to predict pump erosion practically, severe erosion is systematically and precisely observed in a typical centrifugal pump of specific speed N_s = 150(m, m³/min, rpm) in various test conditions in relation to types of cavitation, by means of erosion-depth measurements, noise detections, and cavitation-pressure pulse measurements through the paint method as well as the pressure-sensitive film method. The severe erosion directly result from the vortex cavitation, and the erosion rates are closely related to the size and the occurrence frequency of the vortex cavitation.

Original language	English
Pages (from-to)	1140-1144
Number of pages	5
Journal	Transactions of the Japan Society of Mechanical Engineers Series B
Volume	59
Issue number	560
DOIs	https://doi.org/10.1299/kikaib.59.1140
Publication status	Published - 1993
Externally published	Yes

Keywords

Bubble
Cavitation
Erosion
Flow Visualization
Internal Flow
Pump
Vortex

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering

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10.1299/kikaib.59.1140

Cite this

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title = "Observations of Severely Erosive Vortex Cavitation in a Centrifugal Pump",

abstract = "In order to predict pump erosion practically, severe erosion is systematically and precisely observed in a typical centrifugal pump of specific speed Ns = 150(m, m3/min, rpm) in various test conditions in relation to types of cavitation, by means of erosion-depth measurements, noise detections, and cavitation-pressure pulse measurements through the paint method as well as the pressure-sensitive film method. The severe erosion directly result from the vortex cavitation, and the erosion rates are closely related to the size and the occurrence frequency of the vortex cavitation.",

keywords = "Bubble, Cavitation, Erosion, Flow Visualization, Internal Flow, Pump, Vortex",

author = "Hitoshi Soyama and Tomoyoshi Okamura and Sumio Saito and Hiroharu Kato and Risaburo Oba",

year = "1993",

doi = "10.1299/kikaib.59.1140",

language = "English",

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TY - JOUR

T1 - Observations of Severely Erosive Vortex Cavitation in a Centrifugal Pump

AU - Soyama, Hitoshi

AU - Okamura, Tomoyoshi

AU - Saito, Sumio

AU - Kato, Hiroharu

AU - Oba, Risaburo

PY - 1993

Y1 - 1993

N2 - In order to predict pump erosion practically, severe erosion is systematically and precisely observed in a typical centrifugal pump of specific speed Ns = 150(m, m3/min, rpm) in various test conditions in relation to types of cavitation, by means of erosion-depth measurements, noise detections, and cavitation-pressure pulse measurements through the paint method as well as the pressure-sensitive film method. The severe erosion directly result from the vortex cavitation, and the erosion rates are closely related to the size and the occurrence frequency of the vortex cavitation.

AB - In order to predict pump erosion practically, severe erosion is systematically and precisely observed in a typical centrifugal pump of specific speed Ns = 150(m, m3/min, rpm) in various test conditions in relation to types of cavitation, by means of erosion-depth measurements, noise detections, and cavitation-pressure pulse measurements through the paint method as well as the pressure-sensitive film method. The severe erosion directly result from the vortex cavitation, and the erosion rates are closely related to the size and the occurrence frequency of the vortex cavitation.

KW - Bubble

KW - Cavitation

KW - Erosion

KW - Flow Visualization

KW - Internal Flow

KW - Pump

KW - Vortex

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JO - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B

JF - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B

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Observations of Severely Erosive Vortex Cavitation in a Centrifugal Pump

Abstract

Keywords

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