気流の質による不確かさの同定 Identification of Uncertainties Caused by Flow Qualities

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It is necessary to assess flow qualities more precisely to estimate uncertainties of the wind tunnel test data at higher angles of attack and lower Mach numbers. Then the uncertainties caused by the flow qualities attempted to be identified by repeat tests at different positions in a supersonic wind tunnel. First, the applied conditions were described through the discussions of typical error contributors in the aerodynamic force testing. Next, the standard errors of estimate of the aerodynamic coefficients against angles of attack were calculated from the scattered repeat test data to compare with the uncertainties estimated by the flow calibration data. Finally, the correction factors were introduced to error sensitivities of the flow uniformities to identify the standard errors of estimate caused by the different flow fields. The identified flow quality errors can be applied to estimate data uncertainties of any aerodynamic phenomenon around the similar model shape.

収録刊行物

  • 日本航空宇宙学会論文集 = Journal of the Japan Society for Aeronautical and Space Sciences  

    日本航空宇宙学会論文集 = Journal of the Japan Society for Aeronautical and Space Sciences 55(646), 554-560, 2007-11-05 

    一般社団法人 日本航空宇宙学会

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各種コード

  • NII論文ID(NAID)
    10021152629
  • NII書誌ID(NCID)
    AA11307372
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    13446460
  • NDL 記事登録ID
    9271910
  • NDL 雑誌分類
    ZN25(科学技術--運輸工学--航空機・ロケット)
  • NDL 請求記号
    Z74-B503
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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