Extraction of a Multiscale Structure of a Turbulent Lobed Jet from PIV Results Using a Vector Wavelet Multiresolution Technique

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Author(s)

Abstract

The wavelet-based vector multiresolution technique was applied to the postprocessing of PIV results for identifying the multiscale turbulent structures of a lobed jet. By analyzing the instantaneous streamlines and vorticity fields of various scales, we obtained important information on the multiscale flow structures. The large-scale vortices or coherent structures with a central scale of <I>a</I>=15.36 mm were easily extracted from PIV measurement results. The intermediate- and small-scale vortices embedded within the large-scale vortices were separated and visualized.

Journal

  • TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES

    TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES 45(147), 61-65, 2002-05-04

    THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES

References:  11

Cited by:  3

Codes

  • NII Article ID (NAID)
    10008210786
  • NII NACSIS-CAT ID (NCID)
    AA0086707X
  • Text Lang
    ENG
  • Article Type
    Journal Article
  • ISSN
    05493811
  • NDL Article ID
    6170636
  • NDL Source Classification
    ZN25(科学技術--運輸工学--航空機・ロケット)
  • NDL Call No.
    Z53-M236
  • Data Source
    CJP  CJPref  NDL  J-STAGE 
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