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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationAdvances in Turbulence XI - Proceedings of the 11th EUROMECH European Turbulence Conference
PublisherSpringer Verlag
Pages150-152
Number of pages3
ISBN (Print)9783540726036
DOIs
Publication statusPublished - 2007
Event11th EUROMECH European Turbulence Conference, ETC11 - Porto, Portugal
Duration: 2007 Jun 252007 Jun 28

Publication series

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

Other

Other11th EUROMECH European Turbulence Conference, ETC11
CountryPortugal
CityPorto
Period07/6/2507/6/28

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Near-wall measurements of turbulence statistics with laser Doppler velocity profile and field sensors'. Together they form a unique fingerprint.

  • Cite this

    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. In 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). Springer Verlag. https://doi.org/10.1007/978-3-540-72604-3_47