入口壁面バリアを付加した斜流ターボ機械の内部流れ計測 Internal Flow Measurement of Mixed Flow Turbomachinery with Inlet Wall Barrier

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抄録

It is well known that there is a positive slope region in a mixed-flow pump head curve with high efficiency at design point. Several techniques have been developed to enhance pumping stability. For the purpose of enhancing pumping stability using a more simplified method, the inlet wall barrier (IWB) was proposed in this paper. The experimental investigation was done to make clear the effect of inlet wall barrier on the pump characteristic and the internal flow condition. The variation of pump performance by the change of inlet wall barrier size and location were investigated. As a result, it was determined to be the most effective IWB condition for reducing the positive slope region. Furthermore, velocity distribution profiles and wall pressures were measured in order to clarify the reason why characteristic curve was improved by IWB. In this paper, we showed the effects of IWB on the pump performance and the reason why the IWB enhanced pumping stability through changes in the internal flow condition.

収録刊行物

  • ターボ機械 = Turbomachinery  

    ターボ機械 = Turbomachinery 36(5), 309-314, 2008-05-10 

    Turbomachinery Society of Japan

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各種コード

  • NII論文ID(NAID)
    10021103754
  • NII書誌ID(NCID)
    AN00004836
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03858839
  • NDL 記事登録ID
    9498828
  • NDL 雑誌分類
    ZN15(科学技術--機械工学・工業--流体機械)
  • NDL 請求記号
    Z16-978
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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