内部流れの気流音計測に関する実験的研究 Experimental Study of Flow Noise Measurements for the Internal Flow Fields

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In this study, in order to examine the noise measurement technique of the internal flow, the flow noise due to vortex shedding from a circular cylinder was measured by use of a suction type wind tunnel which was equipped with glass wool walls and a condenser microphone. As a result of experiments, it was found that the acoustical free space can be created when the glass wool was set in the test section of wind tunnel, and the measurement of the fluid sound of the internal flow became possible without disturbing a flow field by incorporating a condenser microphone into the glass wool wall. A sound frequency with one big sound pressure level was measured when measuring a fluid sound from a circular cylinder in the fluid flow and the other frequency ingredient was a level as much as the background noise.

収録刊行物

  • ターボ機械 = Turbomachinery

    ターボ機械 = Turbomachinery 36(4), 235-243, 2008-04-10

    一般社団法人 ターボ機械協会

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各種コード

  • NII論文ID(NAID)
    10021103692
  • 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
    9444778
  • 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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