Near-wall measurements of turbulence statistics with laser Doppler velocity profile and field sensors

Katsuaki Shirai, Christian Bayer, Andreas Voigt, Thorsten Pfister, Lars Büttner, Jürgen Czarske

研究成果: Conference contribution

抜粋

We report on the near-wall turbulence statistics of the streamwise velocity in a fully developed channel flow. The measurement was conducted with two systems of laser Doppler velocity profile sensor at three different Reynolds numbers. Since the sensor provides both the velocity and position of individual tracer particles inside the measurement volume without being mechanically traversed, a high spatially resolved velocity measurement is achieved. The resulting turbulence statistics show a good agreement with available data of direct numerical simulations up to the fourth order moments. This demonstrates the velocity profile sensor to be one of the promising techniques for turbulent flow research with the advantage of a spatial resolution more than one order of magnitude higher than a conventional laser Doppler technique. The results qualifies the two profile sensors to build up a velocity field sensor, capable of measuring velocity distribution within a two-dimensional area without using a camera.

元の言語English
ホスト出版物のタイトルAdvances in Turbulence XI - Proceedings of the 11th EUROMECH European Turbulence Conference
ページ150-152
ページ数3
出版物ステータスPublished - 2007 12 1
外部発表Yes
イベント11th EUROMECH European Turbulence Conference, ETC11 - Porto, Portugal
継続期間: 2007 6 252007 6 28

出版物シリーズ

名前Advances in Turbulence XI - Proceedings of the 11th EUROMECH European Turbulence Conference

Other

Other11th EUROMECH European Turbulence Conference, ETC11
Portugal
Porto
期間07/6/2507/6/28

    フィンガープリント

ASJC Scopus subject areas

  • Atmospheric Science
  • Geophysics
  • Acoustics and Ultrasonics
  • Astronomy and Astrophysics

これを引用

Shirai, K., Bayer, C., Voigt, A., Pfister, T., Büttner, L., & Czarske, J. (2007). Near-wall measurements of turbulence statistics with laser Doppler velocity profile and field sensors. : Advances in Turbulence XI - Proceedings of the 11th EUROMECH European Turbulence Conference (pp. 150-152). (Advances in Turbulence XI - Proceedings of the 11th EUROMECH European Turbulence Conference).