Advertisement

Two-Point-Correlations in a Zero Pressure Gradient Boundary Layer at Reθ = 54600

  • R. Abstiens
  • W.A. El-Askary
  • W. Schröder
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 101)

Summary

The measurements were performed in the 8 × 6 m2 test section of the low-speed German-Dutch wind tunnel (DNW-LLF) at Reynolds numbers up to Re = 50 × 106 in a zero pressure gradient turbulent boundary layer with a maximum thickness of 150 mm. Two triple hot-wire probes were used, one of which could be shifted in the vertical direction and the other one could be moved such that geometrically a three-dimensional wedge-like zone above the surface of the flat plate could be analyzed. Furthermore, 2C and 3C Particle-Image Velocimetry (PIV) measurements were done to obtain the instantaneous flow structure in a complete plane and to check the validity of fundamental assumptions such as the Taylor hypothesis.

Keywords

High Reynolds Number Freestream Velocity Zero Pressure Gradient Plate Boundary Layer Reynolds Number Regime 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Barenblatt, G. I.: Scaling laws for fully developed shear flows. Part I: Basic hypotheses and analysis, J. Fluid Mech., vol. 248, pp 513–520,1993.zbMATHMathSciNetCrossRefGoogle Scholar
  2. 2.
    Fernholz, H. H., Krause, E., Nockemann, M., Schober, M.: Comparative measurements in the canoni-cal boundary layer at Re < 6 × 104 on the wall of the German-Dutch Windtunnel, Phys. of Fluids, vol. 7, pp. 1275–1281, 1995.CrossRefGoogle Scholar
  3. 3.
    Österlund, J. M., Johansson, A. V.: Measurements in a flat plate turbulant boundary layer, Turbulence shear-flow phenomena 1. TSFP-1, Santa Barbara, California, USA, 2000.Google Scholar
  4. 4.
    El-Askary, W.A., Schröder, W., Meinke, M.: LES of Compressible Wall-Bounded Flows, AIAA Paper 2003-3554, 2003.Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • R. Abstiens
    • 1
  • W.A. El-Askary
    • 1
  • W. Schröder
    • 1
  1. 1.Aerodynamisches Institut RWTH AachenAachenGermany

Personalised recommendations