On suppressing cavitation surge by using tandem bladed helical inducer with low solidity front blades

Akinori Furukawa; Koichi Ishizaka; Satoshi Watanabe

doi:10.1299/kikaib.67.3005

On suppressing cavitation surge by using tandem bladed helical inducer with low solidity front blades

Akinori Furukawa, Koichi Ishizaka, Satoshi Watanabe

Fluids Engineering

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

Abstract

A cavitation surge oscillation in the range of partial flow rate and low NPSH hinders the wide operation of an inducer for industrial turbo-pumps, though it is very effective to improve the cavitation performance. The harmful oscillation of cavitation surge occurs in the case of inducers with high solidity more than 1.0. This oscillation might be suppressed if a tandem bladed inducer, having a front inducer with low solidity less than 1.0, would be employed. Experiment tests to examine its effect are described in the present paper. Results show that the amplitude of the oscillation takes almost zero when a relative peripheral or axial position between the front and rear blades is properly chosen. The reasons are discussed with measured casing wall pressure distributions and observed cavitation behaviors.

Original language	English
Pages (from-to)	3005-3010
Number of pages	6
Journal	Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume	67
Issue number	664
DOIs	https://doi.org/10.1299/kikaib.67.3005
Publication status	Published - Dec 2001

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanical Engineering

Access to Document

10.1299/kikaib.67.3005

Fingerprint Dive into the research topics of 'On suppressing cavitation surge by using tandem bladed helical inducer with low solidity front blades'. Together they form a unique fingerprint.

Cite this

On suppressing cavitation surge by using tandem bladed helical inducer with low solidity front blades. / Furukawa, Akinori; Ishizaka, Koichi; Watanabe, Satoshi.

In: Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 67, No. 664, 12.2001, p. 3005-3010.

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

@article{d6b3948a368649109095791b0eef2eaa,

title = "On suppressing cavitation surge by using tandem bladed helical inducer with low solidity front blades",

abstract = "A cavitation surge oscillation in the range of partial flow rate and low NPSH hinders the wide operation of an inducer for industrial turbo-pumps, though it is very effective to improve the cavitation performance. The harmful oscillation of cavitation surge occurs in the case of inducers with high solidity more than 1.0. This oscillation might be suppressed if a tandem bladed inducer, having a front inducer with low solidity less than 1.0, would be employed. Experiment tests to examine its effect are described in the present paper. Results show that the amplitude of the oscillation takes almost zero when a relative peripheral or axial position between the front and rear blades is properly chosen. The reasons are discussed with measured casing wall pressure distributions and observed cavitation behaviors.",

author = "Akinori Furukawa and Koichi Ishizaka and Satoshi Watanabe",

year = "2001",

month = dec,

doi = "10.1299/kikaib.67.3005",

language = "English",

volume = "67",

pages = "3005--3010",

journal = "Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B",

issn = "0387-5016",

publisher = "The Japan Society of Mechanical Engineers",

number = "664",

}

TY - JOUR

T1 - On suppressing cavitation surge by using tandem bladed helical inducer with low solidity front blades

AU - Furukawa, Akinori

AU - Ishizaka, Koichi

AU - Watanabe, Satoshi

PY - 2001/12

Y1 - 2001/12

N2 - A cavitation surge oscillation in the range of partial flow rate and low NPSH hinders the wide operation of an inducer for industrial turbo-pumps, though it is very effective to improve the cavitation performance. The harmful oscillation of cavitation surge occurs in the case of inducers with high solidity more than 1.0. This oscillation might be suppressed if a tandem bladed inducer, having a front inducer with low solidity less than 1.0, would be employed. Experiment tests to examine its effect are described in the present paper. Results show that the amplitude of the oscillation takes almost zero when a relative peripheral or axial position between the front and rear blades is properly chosen. The reasons are discussed with measured casing wall pressure distributions and observed cavitation behaviors.

AB - A cavitation surge oscillation in the range of partial flow rate and low NPSH hinders the wide operation of an inducer for industrial turbo-pumps, though it is very effective to improve the cavitation performance. The harmful oscillation of cavitation surge occurs in the case of inducers with high solidity more than 1.0. This oscillation might be suppressed if a tandem bladed inducer, having a front inducer with low solidity less than 1.0, would be employed. Experiment tests to examine its effect are described in the present paper. Results show that the amplitude of the oscillation takes almost zero when a relative peripheral or axial position between the front and rear blades is properly chosen. The reasons are discussed with measured casing wall pressure distributions and observed cavitation behaviors.

UR - http://www.scopus.com/inward/record.url?scp=71249160419&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=71249160419&partnerID=8YFLogxK

U2 - 10.1299/kikaib.67.3005

DO - 10.1299/kikaib.67.3005

M3 - Article

AN - SCOPUS:71249160419

VL - 67

SP - 3005

EP - 3010

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

SN - 0387-5016

IS - 664

ER -