ポンプ性能に及ぼす後縁翼の影響 The Influence of Attachments to Blade Trailing Edges on Pump Performance

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This papaer reports on an innovative method of changing a centrifugal low specific speed pump performance by applying exit blade flaps to impeller outlet. Centrifugal pump is designed to a specification associated with the maximum impeller diameter. Therefore, when higher head is demanded, a large impeller diameter will be required. Another method to modify pump performance is the formation of flaps at impeller blade exits. The exit blade edge section corresponds to the trailing edge of wing on the circular-cascade, which dominates the pump performance and pressure fluctuation. This paper presents an analytical method of predicting the pump performance related to the attachment of a flap at the trailing edge of impeller outlet. The influence of the flaps on the pressure fluctuation is explained by introducing Kurtosis of flow velocity distribution.

収録刊行物

  • ターボ機械 = Turbomachinery  

    ターボ機械 = Turbomachinery 35(2), 102-112, 2007-02-10 

    Turbomachinery Society of Japan

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各種コード

  • NII論文ID(NAID)
    10018722082
  • 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
    8663326
  • 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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