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2004 Fiscal Year Final Research Report Summary

Optimum Design of a Diffuser Pump for High Efficiency and Favorite Characteristics

Research Project

Project/Area Number 14350095
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Fluid engineering
Research InstitutionKYUSHU INSTITUTE OF TECHNOLOGY

Principal Investigator

TSUKAMOTO Hiroshi  KYUSHU INSTITUTE OF TECHNOLOGY, LIFE SCIENCE AND SYSTEMS ENGINEERING, PROFESSOR, 大学院・生命体工学研究科, 教授 (50117305)

Co-Investigator(Kenkyū-buntansha) MIYAZAKI Koji  KYUSHU INSTITUTE OF TECHNOLOGY, LIFE SCIENCE AND SYSTEMS ENGINEERING, ASSOCIATE PROFESSOR, 大学院・生命体工学研究科, 助教授 (70315159)
UNO Mitsuo  KYUSHU KYORITSU UNIVERSITY, FACULTY OF ENGINEERING, PROFESSOR, 工学部, 教授 (60142353)
TANAKA Teiichi  YATSUSHIRO NATIONAL COLLEGE OF TECHNOLOGY, DEPARTMENT OF MECHANICAL AND ELECTRICAL ENGINEERING, ASSOCIATE PROFESSOR, 機械電機工学科, 助教授 (00300658)
Project Period (FY) 2002 – 2004
KeywordsDiffuser Pump / Unstable Characteristics / Optimum Design / Unsteady Flow / Rotor-Stator Interaction / Pressure Fluctuation / Correlation Dimension / Liapunov Exponent
Research Abstract

Diffuser pump characteristics were measured to determine the objective functions for the optimum design of the pump. As the results of pressure measurements on bada-to-balde passage in vaned diffuser as well as casing wall of a diffuser pump, the effects of rotor-stator interaction on unsteady pressure was clarified. Unsteady hydraulic forces on pump impeller were measured, and predominant frequencies were found to be attributed by rotor-stator interaction. Chaotic analysis was done for entire flow range including unstable flow range, and Liapunov exponent as well as Liapunov dimension was found to be an objective functions of un favorite characteristics of pump. Numerical calculation was developed for cavitating pump characteristics, and calculated unsteady characteristics of cavitating pump agreed qualitatively with measured ones.
Referring to the above results, Genetic Algorithm(GA) was applied to the optimum design of low solidity cascade for the vaned diffuser of a diffuser pump. The low solidity cascade optimized by GA showed better characteristics compared with original vaned diffuser.
On the contrary, the following problems have not been solved :
(1)Optimum design of diffuser pump for whole stage,
(2)Multi objective optimum design.

  • Research Products

    (16 results)

All 2004 2003 2002

All Journal Article (16 results)

  • [Journal Article] OPTIMIZATION OF LOW SOLIDITY DIFFUSER FOR DIFFUSER PUMP BY GENETIC ALGHORITHM2004

    • Author(s)
      Jun Li
    • Journal Title

      Proceedings of the 22^<nd> IAHR Symposium on Hydraulic Machinery and Systems B12-1

      Pages: 1-12

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] STUDY ON DIFFUSER PUMP INSTABILITY AT OFF-DESIGN CONDITIONS2004

    • Author(s)
      Hiroshi Tsukamoto
    • Journal Title

      Proceedings of the 22^<nd> IAHR Symposium on Hydraulic Machinery and Systems B10-1

      Pages: 1-10

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] ポンプ内キャビテーション流れの数値解析(第1報,モデルの検証とポンプ定常特性)2004

    • Author(s)
      劉立軍
    • Journal Title

      日本機械学会論文集 70・694

      Pages: 1441-1449

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] ポンプ内キャビテーション流れの数値解析(第2報,ポンプ非定常特性)2004

    • Author(s)
      田中禎一
    • Journal Title

      日本機械学会論文集 70・699

      Pages: 2813-2821

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] THE STABILITY OF A NEW TYPE CENTRIFUGAL PUMP WITH SHAFT-LESS FLOATING IMPELLER2004

    • Author(s)
      Mitsuo UNO
    • Journal Title

      Proceedings of the 22^<nd> IAHR Symposium on Hydraulic Machinery and Systems B12・3

      Pages: 1-9

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] OPTIMIZATION OF LOW SOLIDITY DIFFUSER FOR DIFFUSER PUMP BY GENETIC ALGHORITHM2004

    • Author(s)
      Jun Li
    • Journal Title

      Proceedings of the 22^<nd> IAHR Symposium on Hydraulic Machinery and Systems (Stockholm-Sweden) Vol.B, B12-1

      Pages: 1-12

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] STUDY ON DIFFUSER PUMP INSTABILITY AT OFF-DESIGN CONDITIONS2004

    • Author(s)
      Hiroshi Tsukamoto
    • Journal Title

      Proceedings of the 22^<nd> IAHR Symposium on Hydraulic Machinery and Systems (Stockholm-Sweden) Vol.B10-1

      Pages: 1-10

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Numerical Analysis of Cavitating Centrifugal Pump (1st Report, Validation of Model and Pump Steady Performance)2004

    • Author(s)
      Lijun LIU
    • Journal Title

      Transactions of the Japan Society of Mechanical Engineers Vol.70-694

      Pages: 1441-1449

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Numerical Analysis of Cavitating Centrifugal Pump (2st Report, Pump Unsteady Characteristics)2004

    • Author(s)
      Teiichi TANAKA
    • Journal Title

      Transactions of the Japan Society of Mechanical Engineers Vol.70-699

      Pages: 2813-2821

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] THE STABILITY OF A NEW TYPE CENTRIFUGAL PUMP WITH SHAFT-LESS FLOATING IMPELLER2004

    • Author(s)
      Mitsuo UNO
    • Journal Title

      Proceedings of the 22th IAHR Symposium on Hydraulic Machinery and Cavitation (Stockholm-Sweden) Vol.B, B12-3

      Pages: 1-9

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] EXPERIMENTAL AND NUMERICAL STUDY OF UNSTEADY FLOW IN A DIFFUSER PUMP AT OFF-DESIGN CONDITIONS2003

    • Author(s)
      Hong WANG
    • Journal Title

      Trans. ASME Journal of Fluids Engineering 125

      Pages: 767-778

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] EXPERIMENTAL STUDY ON UNSTABLE CHARACTERISTICS OF MIXED-FLOW PUMP AT LOW FLOW2003

    • Author(s)
      Hiroshi Funakoshi
    • Journal Title

      Proceedings of ASME 2003 Fluids Engineering Division Summer Meeting FEDSM2003

      Pages: 45103

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Experimental and Numerical Study of Unsteady Flow in a Diffuser Pump at Off-Design Conditions2003

    • Author(s)
      Hong WANG
    • Journal Title

      Trans.ASME Journal of Fluids Engineering Vol.125

      Pages: 767-778

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] EXPERIMENTAL STUDY ON UNSTABLE CHARACTERISTICS OF MIXED-FLOW PUMP AT LOW FLOW2003

    • Author(s)
      Hiroshi Funakoshi
    • Journal Title

      Proceedings of ASME 2003 Fluids Engineering Division Summer Meeting FEDSM2003-45103

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] 実数型遺伝的アルゴリズムを用いた小弦節比ディフューザの最適化設計2002

    • Author(s)
      李 軍
    • Journal Title

      ターボ機械 30・10

      Pages: 609-616

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Optimization Design of Low Solidity Diffuser for Diffuser Pump Using a Real-Coded Genetic Algorithm2002

    • Author(s)
      Jun LI
    • Journal Title

      Turbomachinery Vol.30-10

      Pages: 609-616

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2006-07-11  

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