Theoretical Consideration for Measurement Method of Local Wall Shear Stress Using Dual Spherical Waves

DOI

Bibliographic Information

Other Title
  • 球面波を用いた局所壁面せん断応力測定方法に関する理論的検討

Abstract

An optical measurement method for local wall shear stress is proposed. The proposed method is based on the laser Doppler technique and it requires no calibration. The Doppler frequnecy obtained by the method changes within a Doppler burst and the variation of the frequency depends on the particle path. Hence, it has the possibility of two-componet measurement with a pair of lasers. In order to realize the measurement, a special technique of signal processing is neccesary for detecting the direction of the local wall shear stress. We propose a possible signal processing technique, although further improvement is required.

Journal

Details 詳細情報について

  • CRID
    1390282680565585920
  • NII Article ID
    130005019977
  • DOI
    10.11345/japannctam.52.0.324.0
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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