Air/water two-phase flow performance of contra-rotating axial flow pump and rotational speed control of rear rotor

Akinori Furukawa, Toru Shigemitsu, Tomoya Takano, Kusuo Okuma, Satoshi Watanabe

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

An application of contra-rotating rotors, consisting of front and rear rotors rotating in the opposite direction each other, has been proposed against a demand for developing higher specific speed axial flow pump with more compact structure, higher efficiency and better cavitation performance. Air/water two-phase flow performance of contra-rotating pump has to be, also, investigated as axial flow pumps are used for standby operations of air-lock and air/water mixing discharge to prevent floods. In the present paper, experimental results on air/water two-phase flow performance of test pump of contra-rotating rotors (RR1 Type) are shown and compared with those of conventional axial flow pump, consisting of a front rotor and a rear stator. Effects of changes of rear rotor rotational speed, which is an advantage of contra-rotating axial flow pump, on two-phase flow performance of RR1 type are discussed. It is shown that air/water two-phase flow performance of contra-rotating axial flow pump is capable to be improved by this control procedure for rear rotor rotational speed.

Original languageEnglish
Pages (from-to)2047-2052
Number of pages6
JournalNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume71
Issue number708
DOIs
Publication statusPublished - Aug 2005

Fingerprint

axial flow pumps
speed control
Axial flow
Speed control
two phase flow
Two phase flow
rotors
Rotors
Pumps
air
Air
water
Water
air locks
pumps
stators
cavitation flow
Cavitation
Discharge (fluid mechanics)
Stators

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering

Cite this

Air/water two-phase flow performance of contra-rotating axial flow pump and rotational speed control of rear rotor. / Furukawa, Akinori; Shigemitsu, Toru; Takano, Tomoya; Okuma, Kusuo; Watanabe, Satoshi.

In: Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 71, No. 708, 08.2005, p. 2047-2052.

Research output: Contribution to journalArticle

@article{f9ff818651b740d78ff81834dc8c3232,
title = "Air/water two-phase flow performance of contra-rotating axial flow pump and rotational speed control of rear rotor",
abstract = "An application of contra-rotating rotors, consisting of front and rear rotors rotating in the opposite direction each other, has been proposed against a demand for developing higher specific speed axial flow pump with more compact structure, higher efficiency and better cavitation performance. Air/water two-phase flow performance of contra-rotating pump has to be, also, investigated as axial flow pumps are used for standby operations of air-lock and air/water mixing discharge to prevent floods. In the present paper, experimental results on air/water two-phase flow performance of test pump of contra-rotating rotors (RR1 Type) are shown and compared with those of conventional axial flow pump, consisting of a front rotor and a rear stator. Effects of changes of rear rotor rotational speed, which is an advantage of contra-rotating axial flow pump, on two-phase flow performance of RR1 type are discussed. It is shown that air/water two-phase flow performance of contra-rotating axial flow pump is capable to be improved by this control procedure for rear rotor rotational speed.",
author = "Akinori Furukawa and Toru Shigemitsu and Tomoya Takano and Kusuo Okuma and Satoshi Watanabe",
year = "2005",
month = "8",
doi = "10.1299/kikaib.71.2047",
language = "English",
volume = "71",
pages = "2047--2052",
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 = "708",

}

TY - JOUR

T1 - Air/water two-phase flow performance of contra-rotating axial flow pump and rotational speed control of rear rotor

AU - Furukawa, Akinori

AU - Shigemitsu, Toru

AU - Takano, Tomoya

AU - Okuma, Kusuo

AU - Watanabe, Satoshi

PY - 2005/8

Y1 - 2005/8

N2 - An application of contra-rotating rotors, consisting of front and rear rotors rotating in the opposite direction each other, has been proposed against a demand for developing higher specific speed axial flow pump with more compact structure, higher efficiency and better cavitation performance. Air/water two-phase flow performance of contra-rotating pump has to be, also, investigated as axial flow pumps are used for standby operations of air-lock and air/water mixing discharge to prevent floods. In the present paper, experimental results on air/water two-phase flow performance of test pump of contra-rotating rotors (RR1 Type) are shown and compared with those of conventional axial flow pump, consisting of a front rotor and a rear stator. Effects of changes of rear rotor rotational speed, which is an advantage of contra-rotating axial flow pump, on two-phase flow performance of RR1 type are discussed. It is shown that air/water two-phase flow performance of contra-rotating axial flow pump is capable to be improved by this control procedure for rear rotor rotational speed.

AB - An application of contra-rotating rotors, consisting of front and rear rotors rotating in the opposite direction each other, has been proposed against a demand for developing higher specific speed axial flow pump with more compact structure, higher efficiency and better cavitation performance. Air/water two-phase flow performance of contra-rotating pump has to be, also, investigated as axial flow pumps are used for standby operations of air-lock and air/water mixing discharge to prevent floods. In the present paper, experimental results on air/water two-phase flow performance of test pump of contra-rotating rotors (RR1 Type) are shown and compared with those of conventional axial flow pump, consisting of a front rotor and a rear stator. Effects of changes of rear rotor rotational speed, which is an advantage of contra-rotating axial flow pump, on two-phase flow performance of RR1 type are discussed. It is shown that air/water two-phase flow performance of contra-rotating axial flow pump is capable to be improved by this control procedure for rear rotor rotational speed.

UR - http://www.scopus.com/inward/record.url?scp=27744459531&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=27744459531&partnerID=8YFLogxK

U2 - 10.1299/kikaib.71.2047

DO - 10.1299/kikaib.71.2047

M3 - Article

AN - SCOPUS:27744459531

VL - 71

SP - 2047

EP - 2052

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 - 708

ER -