PWR燃料ロッドバンドル内の乱流流速場に関する研究 Investigation of Turbulent Velocity Field in PWR Fuel Rod Bundle

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著者

    • 池田 一生 IKEDA Kazuo
    • ニュークリア・デベロップメント(株) Fuel and Core Structure Engineering, Nuclear Fuel and Core R&D Dept.
    • 牧野 泰 MAKINO Yasushi
    • 三菱重工業(株) Thermal Hydraulics & Core Internals Engineering Section, Reactor Core Engineering Department, Mitsubishi Heavy Industries, Ltd.
    • 星 雅也 HOSHI Masaya
    • 三菱重工業(株) Thermal Hydraulics & Core Internals Engineering Section, Reactor Core Engineering Department, Mitsubishi Heavy Industries, Ltd.

抄録

  Precise velocity measurement in a fuel rod bundle is required to improve the thermal hydraulic characteristics of Pressurerized Water Reactor (PWR) spacer grids. However, the use of conventional laser Doppler velocimetry (LDV) is restricted by the existence of invisible region in fuel rod bundles and insufficient spatial resolution for the narrow gaps in rod bundles. The new LDV was therefore developed to overcome these problems. The LDV is miniaturized with fiber optics embedded in a fuel cladding and can be inserted in an arbitrary grid cell instead of a fuel rod. The rod-embedded fiber LDV (rod LDV) is applied for cross-flow and axial-flow measurements at rod gaps and sub-channels to investigate turbulent velocity field in a rod bundle with mixing spacer grids. Distributions of mean velocity and turbulent intensity around the center rod of a 5×5 rod bundle are obtained. The measurements of this study are compared with particle image velocimetry (PIV) measurement for the same geometry and flow condition. Similarity of both measurements is confirmed qualitatively and some of data are in good agreement quantitatively.<br>

収録刊行物

  • 日本原子力学会和文論文誌 = Transactions of the Atomic Energy Society of Japan  

    日本原子力学会和文論文誌 = Transactions of the Atomic Energy Society of Japan 6(1), 35-45, 2007-03-25 

    Atomic Energy Society of Japan

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各種コード

  • NII論文ID(NAID)
    10018413493
  • NII書誌ID(NCID)
    AA11643165
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    13472879
  • NDL 記事登録ID
    8772373
  • NDL 雑誌分類
    ZN36(科学技術--原子力工学・工業)
  • NDL 請求記号
    Z74-C788
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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