実効的なレベルを用いた境界層遷移に対する外乱の影響の評価

DOI

書誌事項

タイトル別名
  • Evaluation of Influence on 2-D Boundary Layer Transition of External Disturbances Using Their Effective Levels

抄録

Effective external disturbance levels of free-stream turbulence and acoustic noise are proposed to evaluate their influence on laminar-to-turbulent transition in 2-D boundary layers. These effective external disturbance level are defined as the product of experimentally measured external disturbance and a weight function, which has two parameters such as the center frequency and the band width. Those two parameters are optimized in boundary layers on an NACA0012 airfoil. In results, they are found out to be related to the growth rate of the primary instability predicted by eN method based on linear stability theory.

収録刊行物

詳細情報

  • CRID
    1390282679671038080
  • NII論文ID
    130003818050
  • DOI
    10.11426/nagare1982.26.385
  • ISSN
    21854912
    02863154
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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