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Study of Pump Abnormal Characteristics from Prevention toward Suppression and Control

Research Project

Project/Area Number 11555055
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section展開研究
Research Field Fluid engineering
Research InstitutionKYUSHU INSTITUTE OF TECHNOLOGY

Principal Investigator

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

Co-Investigator(Kenkyū-buntansha) TSUJIMOTO Yoshinobu  OSAKA UNIVERSITY, ENGINEERING, PROFESSOR, 大学院・基礎工学研究科, 教授 (50112024)
KUROKAWA Junichi  YOKOHAMA NATIONAL UNIVERSITY, ENGINEERING, PROFESSOR, 大学院・工学研究院, 教授 (40017976)
FURUKAWA Akinori  KYUSHU UNIVERSITY, ENGINEERING, PROFESSOR, 大学院・工学研究科, 教授 (30112410)
KIKUYAMA Koji  NAGOYA UNIVERSITY, ENGINEERING, PROFESSOR, 大学院・工学研究科, 教授 (90023192)
Project Period (FY) 1999 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥13,800,000 (Direct Cost: ¥13,800,000)
Fiscal Year 2001: ¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 2000: ¥4,600,000 (Direct Cost: ¥4,600,000)
Fiscal Year 1999: ¥6,400,000 (Direct Cost: ¥6,400,000)
KeywordsPump / Unsteady Flow / Unstable Characteristics / Cavitation / Pressure Fluctuations / Viscous Flow Analysis / CFD / Unsteady Hydraulic Force / 流れ制御
Research Abstract

A variety of unstable characteristics of turbopumps were studied to develop the flow control methods for the stable pump operations. Common factor was tried to find for-various unstable phenomena through the study of five different type unsteady phenomena in turbopumps.
[Osaka University Group]: Four bladed inducer was studied on inlet distortion, and then unsteady stress on blades was found to be induced by the interaction between cavities induced by inlet distortion and alternative blade cavitations. And three bladed inducer was found to generate the higher order rotating cavitations.
[Nagoya University Group]: Two different specific speed mixed flow pumps were tested to study the decrease in pumping action at low suction pressure. Flow distributions at pump impeller inlet are related to cavitations number.
[Kyushu University Group] : Tandem type rotating cascade as well as high blade outlet angle was tested to suppress and control the air lock phenomena at high void ratio. And control system for the blade outlet angle was tested to get the higher pump efficiency.
[Kyushu Institute of Technology Group]: Unsteady flow structures were studied to get the pre-unstable signals for the prediction of the occurrence of unstable phenomena of diffuser pump at low discharge.
[Yokohama National University Group]: Slit on diffuser wail, the J-Groove, was tested to suppress the rotating vortex core at strong inlet distortion in conical diffuser.
The J-Groove was found to be effective for the suppression of pressure fluctuations due to strong rotating flow up to 46 percent.

Report

(4 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • Research Products

    (21 results)

All Other

All Publications (21 results)

  • [Publications] Akira FUJII: "Unsteady Stress of 4-Bladed Inducer Blades and the Effect of Inlet Flow Distortion"JSME Interna tional Journal. 45-1. 47-54 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yoshida, Y.: "Effects of Alternate Leading Edge Cutback on Unsteady Cavitation in 4-Bladed Inducers"Journal of Fluids Engineering. 123-4. 762-770 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 藤井 明: "4枚羽根インデューサの翼変動応力とこれに及ぼす入口偏流の影響"日本機械学論文集. 68-665. 153-160 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 古川明徳: "気液二相遠心ポンプの揚水性能と液噴流による羽根車内気体滞留域の粉砕"日本混相流学会年次大会2001講演論文集. 35-36 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 王宏: "渦法によるディフューザポンプ部分流量域非定常流れの数値計算"日本機械学論文集. 68-666. 447-454 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S.L.Saha: "Passive Control of Rotating Stall in a Parallel-Wall Vaned Diffuser by J-Grooves"Trans. ASME, Jour. of Fluid Engineering. 123. 507-515 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Wang, H., and Tsukamoto, H.: "Numerical Analysis of Pressure Fluctuation due to Rotor-Stator Interaction in a Diffuser Pump by Vortex Method"Proceedings of 20^<th> IAHR Symposium. (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Sun, J., and Tsukamoto, H.: "Off-design performance prediction for diffuser pumps"Proceedings of the Institution of Mechanical Engineers, Part A. Journal of Power and Energy. Vol.215,Part A. 191-201 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S.L. Saha, J. Kurokawa, J. Matsui, H. Imamura: "Trans. ASME, Journal of Fluids Passive Control of Rotating Stall in a Parallel-Wall Diffuser by J-Grooves"Engineering. Vol.123,2001, Vaned. 507-515

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yoshida, Y., Tsujimoto, Y., Kataoka, D., Horiguchi, H., and F. Wahl: "Effects of Alternate Leading Edge Cutback on Unsteady Cavitation in 4-Bladed Inducers"ASME, Journal of Fluids Engineering. Vol.123,No.4. 762-770 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Fujii, A., Azuma, S., Yoshida, Y., Tsujimoto, Y., and Laffite, S.: "Unsteady Stress of 4-Bladed Inducer Blades and the Effect of Inlet Flow Distortion"JSME International Journal. Vol.45,No.1. 47-54 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Akira JUJII: "Unsteady Stress of 4-Bladed Inducer Blades and the Effect of Inlet Flow Distortion"JSME International Journal. 45-1. 47-54 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Yoshida, Y.: "Effects of Alternate Leading Edge Cutback on Unsteady Cavitation in 4-Bladed Inducers"Journal of Fluids Engineering. 123-4. 762-770 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 藤井 明: "4枚羽根インデューサの翼変動応力とこれに及ぼす入口偏流の影響"日本機械学論文集. 68-665. 153-160 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 古川明徳: "気液二相遠心ポンプの揚水性能と液噴流による羽根車内気体滞留域の粉砕"日本混相流学会年次大会2001講演論文集. 35-36 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 王宏: "渦法によるディフューザポンプ部分流量域非常流れの数値計算"日本機械学論文集. 68-666. 447-454 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] S.L.Saha: "Passive Control of Rotating Stall in a Parallel-Wall Vaned Diffuser by J-Grooves"Trans. ASME, Jour. of Fluid Engineering. 123. 507-515 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 古川明徳: "高揚水性能を示す気液二相遠心ポンプのタンデム回転翼列羽根車設計について"日本機械学会論文集. 66・649. 2399-2404 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Zhang,M: "Experimental and Numerical Study of Unsteady Fluid Force due to Rotor-Stator Interaction in a Diffuser Pump"Proceedings of The 6th Asian International Conference on Fluid Machinery. 48-53 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Wang,H.: "Numerical Analysis of Pressure Fluctuation due to Rotor-Stator Interaction in a Diffuser Pump by Vortex Method"Proceedings of 20th IAHR Symposium on Hydraulic Machinery and Systems. Paper No.CFD S-01. (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Sun,J.: "Numerical Approaches to Diffuser Pump Off-Design Performance"Proceedings of The 2nd International Symposium on Fluid Machinery and Fluid Engineering (2nd ISFMFE). 253-260 (2000)

    • Related Report
      2000 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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