Correlation between Linear Stability Theory and Transition of Compressible Jet Shear Layer

この論文にアクセスする

この論文をさがす

著者

抄録

A correlation between spatial linear stability calculations and the onset of transition in compressible jet shear layer was investigated. In the present study, an attempt was made to apply the conventional <I>e<SUP>N</SUP></I> method to a transition prediction of the free shear layer flow in a compressible jet. The mean velocity profiles for a compressible circular jet were experimentally obtained at different downstream locations, which were used as an input to the linear stability calculation code. The growth rates of disturbances from the stability calculation were integrated to obtain an envelope curve. On the other hand, the transition was detected experimentally by the use of three techniques: (1) oil flow visualization, (2) microphone measurements for pressure fluctuations, (3) hot wire anemometer measurements for velocity fluctuations. The results from both the microphone and the hot wire anemometer measurements showed that the transition starts at about 1.333<I>D</I> from the nozzle exit, where <I>D</I> is the nozzle diameter, which is near the “apparent origin” in the fully developed jet flow. It was found that the value of factor <I>N</I> in the <I>e<SUP>N</SUP></I> method is about 3.5 for axisymmetric (<I>n</I>=0) and 2.8 for asymmetric (<I>n</I>=1) disturbance modes in the present compressible jet.

収録刊行物

  • Transactions of the Japan Society for Aeronautical and Space Sciences

    Transactions of the Japan Society for Aeronautical and Space Sciences 45(147), 35-44, 2002-05-04

    一般社団法人 日本航空宇宙学会

参考文献:  16件中 1-16件 を表示

各種コード

  • NII論文ID(NAID)
    10008210728
  • NII書誌ID(NCID)
    AA0086707X
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    05493811
  • NDL 記事登録ID
    6170578
  • 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
    Z53-M236
  • データ提供元
    CJP書誌  NDL  J-STAGE 
ページトップへ