プロ-ブとして中性子を用いた金属管内気液二相流の可視化と計測(第1報,高時間分解能中性子ラジオグラフィ-とその限界時間分解能)  [in Japanese] Visualization and Measurements of Two-Phase Flows in Metallic Ducts Using Neutrons as Microscopic Probes (1st Report, Time-Resolved Neutron Radiography and Its Limited Time-Resolution)  [in Japanese]

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Author(s)

Abstract

Experiments on visualization of high-speed fluid phenomena in metallic ducts were conducted by three kinds of time-resolved neutron radiography techniques. In the direct film method with a pulsed neutron beam, frozen neutron radiographs of air-water flows in a rectangular duct were obtained successfully. The high-frame-rate neutron radiography with pulsed and steady neutron beams allowed visualization of boiling water two-phase flow in a tube at the recording speed of 500 frames/s and air-water flows in a rectangular duct at up to 1000 frames/s, respectively. The quality of the images obtained from the time-resolved neutron radiography was sufficient for observation of the fluid behavior. The limit of the time-resolution was clarified based on the sensitivity and light-decay constant of the converter and the measurement error of neutrons calculated by statistical analysis.

Journal

  • Transactions of the Japan Society of Mechanical Engineers. Series B.

    Transactions of the Japan Society of Mechanical Engineers. Series B. 00061(00591), 3959-3966, 1995-11-25

    The Japan Society of Mechanical Engineers

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Codes

  • NII Article ID (NAID)
    110002403008
  • NII NACSIS-CAT ID (NCID)
    AN00187441
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    03875016
  • NDL Article ID
    3635224
  • NDL Source Classification
    M078(応用流体力学)
  • NDL Source Classification
    ZN11(科学技術--機械工学・工業)
  • NDL Call No.
    Z16-109
  • Data Source
    CJP  CJPref  NDL  NII-ELS 
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