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
Pages150-152
Number of pages3
Publication statusPublished - 2007 Dec 1
Externally publishedYes
Event11th EUROMECH European Turbulence Conference, ETC11 - Porto, Portugal
Duration: 2007 Jun 252007 Jun 28

Other

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

Fingerprint

velocity profile
velocity distribution
laser
turbulence
statistics
sensor
sensors
lasers
channel flow
direct numerical simulation
turbulent flow
velocity measurement
Reynolds number
tracers
spatial resolution
tracer
cameras
moments
profiles
simulation

ASJC Scopus subject areas

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

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)

Near-wall measurements of turbulence statistics with laser Doppler velocity profile and field sensors. / Shirai, Katsuaki; Bayer, Christian; Voigt, Andreas; Pfister, Thorsten; Büttner, Lars; Czarske, Jürgen.

Advances in Turbulence XI - Proceedings of the 11th EUROMECH European Turbulence Conference. 2007. p. 150-152.

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

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, 11th EUROMECH European Turbulence Conference, ETC11, Porto, Portugal, 07/6/25.
Shirai K, Bayer C, Voigt A, Pfister T, Büttner L, Czarske J. 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. 2007. p. 150-152
Shirai, Katsuaki ; Bayer, Christian ; Voigt, Andreas ; Pfister, Thorsten ; Büttner, Lars ; Czarske, Jürgen. / 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. 2007. pp. 150-152
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