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Study on Instabilities of Two-Phase He II/vapor flow in a pipe

Research Project

Project/Area Number 12450074
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Fluid engineering
Research InstitutionTohoku University

Principal Investigator

KAMIJO Kenjiro (2002)  Institute of Fluid Science, Professor, 流体科学研究所, 教授 (90282003)

尾池 守 (2000-2001)  東北大学, 流体科学研究所, 助教授 (70292282)

Co-Investigator(Kenkyū-buntansha) MATSUMOTO Yoichiro  Department of Mechanical Engineering, University of Tokyo, Professor, 大学院・工学系研究科, 教授 (60111473)
TOKUMASU Takashi  Institute of Fluid Science, Lecturer, 流体科学研究所, 講師 (10312662)
OIKE Mamoru  Ishinomaki Senshu University, School of Science and Engineering, Department of Mechanical Engineering, Professor, 理工学部機械工学科, 教授 (70292282)
石本 淳  弘前大学, 理工学部, 助教授 (10282005)
上條 謙二郎  東北大学, 流体科学研究所, 教授 (90282003)
Project Period (FY) 2000 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥15,000,000 (Direct Cost: ¥15,000,000)
Fiscal Year 2002: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 2001: ¥5,100,000 (Direct Cost: ¥5,100,000)
Fiscal Year 2000: ¥7,900,000 (Direct Cost: ¥7,900,000)
Keywordssuperfluid helium / multiphase flow / flow instability / liquid helium / cavitation model / drift-flux model / 極低温混相流 / 極低温気液二相流 / 多流体モデル
Research Abstract

The aim of this research is to analyze the flow instability of multi-phase flow of liquid helium which consists of superfluid, normalfluid and vapor phase.
The experimental apparatus for the generation of multiphase flow of superfluid helium is improved. It is important to shield the superfliud helium from the heat for high accuracy measurement. To protect the liquid helium from the outside heat the copper shield is added to the upstream and downstream tank and around the test section. Using this improved apparatus, the two-phase flow of superfluid helium is generated at the test section and the data of the relation between Reynolds number and cavitation number are obtained. For this reason, it is confirmed that the cavitation number is decreased as the Reynolds number is increased.
Moreover, the phenomena are analyzed by the numerical method. The two-phase flow is assumed as bubble cavitation and the governing equations are constructed so that continuum equation, momentum equation and energy conservation is satisfied. These equations are solved by SMAC method and the flow structure at the nozzle is analyzed. Consequently, at the blowdown, the pressure decreases immediately and vortex is generated downstream of the throat.

Report

(4 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • 2000 Annual Research Report
  • Research Products

    (25 results)

All Other

All Publications (25 results)

  • [Publications] Ishimoto, J., Oike, M., Kamijo, K.: "Two-Dimensional Numerical Simulation of Boiling Two-Phase Flow of Liquid Nitrogen"Trans. the Japan Soc. Aeronautical and Space Sciences. 43. 114-121 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Oike, M., Tokumasu, T., Kamijo, K.: "Observation of Helium Two-Phase Flows in a Pipe"Proceedings of Fourth International Symposium on Cavitation, Pasadena, CA, CAV2001. A8-002 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Ishimoto, J., Oike, M., Kamijo, K.: "Two-Dimensional Numerical Simulation of Cavitating of Superfluid Helium II"Proceedings of the First International Symposium on Advanced Fluid Information, Sendai. 245-250 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Oike, M., Tokumasu, T., Kamijo, K.: "Observation of Two-Phase Cryogenic Flows in a Horizontal Pipe"Proceedings of the First International Symposium on Advanced Fluid Information, Sendai. 281-286 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Ishimoto, J., Oike, M., Kamijo, K.: "Numerical Analysis of Two-Phase Pipe Flow of Liquid Helium Using Multi-Fluid Model"Transaction of ASME Journal of Fluid Engineering. 123. 811-818 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Ishimoto, J., Kamijo, K.: "Numerical Simulation of Cavitating Flow of Liquid Helium in Venturi Channel"Cryogenics. 43. 9-17 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Ishimoto, J, Oike, M, Kamijo, K: "Numerical Simulation of Cavitating Flow of Liquid Helium in a Pipe Using Multi-Fluid Model"Advances in Cryogenic Engineering. 47. 1413-1420 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 石本淳, 上條謙二郎: "液体ヘリウムのベンチュリ流路内キャビテーション流れに関する数値シミュレーション"低温工学. 37. 565-572 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Ishimoto, J., Oike, M., Kamijo, K.: "Two-Dimensional Numerical Simulation of Boiling Two-Phase Flow of Liquid Nitrogen"Transactions of the Japan Society for Aeronautical and Space Sciences. Vol.43, No.141. 114-121 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Oike, M., Tokumasu, T., Kamijo, K.: "Observation of Helium Two-Phase Flows in a Pipe"Proceedings of Fourth International Symposium on Cavitation, Pasadena, CA,. CAV2001:sessionA8.002. (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Ishimoto, J., Oike, M., Kamijo, K.: "Two-Dimensional Numerical Simulation of Cavitating of Superfluid Helium"Proceedings of the First International Symposium on Advanced Fluid Information. 245-250 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Oike, M., Tokumasu, T., Kamijo, K.: "Observation of Two-Phase Cryogenic Flows in a Horizontal Pipe"Proceedings of the First International Symposium on Advanced Fluid Information. 281-286 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Ishimoto, J., Oike, M., Kamijo, K.: "Numerical Analysis of Two-Phase Pipe Flow of Liquid Helium Using Multi-Fluid Model"Transaction of ASME Journal of Fluid Engineering. Vol.123, No.4. 811-818 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Ishimoto, J., Kamijo, K.: "Numerical Simulation of Cavitating Flow of Liquid Helium in Venturi Channel"Cryogenics. Vol.43, No.1. 9-17 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Ishimoto, J., Oike, M., Kamijo, K.: "Numerical Simulation of Cavitating Flow of Liquid Helium in a Pipe Using Multi-Fluid Model"Advances in Cryogenic Engineering. Vol.47. 1413-1420 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Ishimoto, J., Kamijo, K.: "Numerical Simulation of Cavitating Flow of Liquid Helium in a Venturi Pipe"Cryogenic Engineering. Vol.37. 565-572 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Ishimoto, J, Oike, M, Kamijo, K: "Numerical Simulation of Cavitating Flow of Liquid Helium in a Pipe Using Multi-Fluid Model"Advances in Cryogenic Engineering. 47. 1413-1420 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 石本淳, 上條謙二郎: "液体ヘリウムのベンチュリ流路内キャビテーション流れに関する数値シミュレーション"低温工学. 37. 565-572 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Oike, M.: "Observation on Helium Two-Phase Flows in a Pipe"Proceedings of 4th International Symposium on Cavitation. A8-002 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Ishimoto, J.: "Two- Dimensional Numerical Simulation of Cavitating Flow of Superfluid Helium II"Proceedings of the 1st International Symposium on AFI. 245-250 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Oike, M.: "Observation of Two-Phase Cryogenic Flows in a Horizontal Pipe"Proceedings of the 1st International Symposium on AFI. 281-286 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Ishimoto, J.: "Numerical Analysis of Two-Phase Pipe Flow of Liquid Helium Using Multi-Fluid Model"Journal of Fluids Engineering. Vol.123. 811-818 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 尾池守 他3名: "極低温流体の管内気液二相流の観察"日本混相流学会年会講演会2000(第1回)講演論文集. 101-102 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Oike,M., et al.: "Two-Dimensional Numerical Simulation of Boiling Two-Phase Flow of Liquid Nitrogen"Transactions of JSASS. 43・141. 115-121 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Oike,M., et al.: "Cryogenic Tow-Phase Flow in Annular Seals"Synopses of the International Tribology Conference Nagasaki. 264 (2000)

    • Related Report
      2000 Annual Research Report

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Published: 2000-04-01   Modified: 2016-04-21  

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