Advertisement

Computer Aided Discrimination of Slow and Fast Tracer Paths

  • H.-H. Bartels
  • W. J. Hiller
  • T. A. Kowalewski
Conference paper

Summary

An optical method for the discrimination between slow and fast tracer particles conveyed with a flow is proposed. It is based on the dependence of the brightness of a trace from the velocity of the corresponding tracer. The images are captured by a CCD-camera and processed on-line. A practical application to the visualization of low velocity streamlines in a rotating duct is presented. Attempts to develop this technique into a quantitative tool for velocity measurements will be discussed.

Keywords

Particle Image Tracer Image Optical Scatter Good Approximation Linear Detectable Velocity 
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.
    Bartels-Lehnhoff, H.-H.; Hiller, W. J.; Kowalewski, T. A.: Computer aided Discrimination of slow and fast Tracer Paths. Accepted for publication in: Experiments in Fluids, 1992.Google Scholar
  2. 2.
    Brodkey, R. S.: Image processing and Analysis for Turbulence Research, Chem. Engr. Educ., 20 (1986) 202–207.Google Scholar
  3. 3.
    Jähne, B.: Digitale Bildverarbeitung. Berlin: Springer Verlag (1989)MATHCrossRefGoogle Scholar
  4. 4.
    Bartels-Lehnhoff. H.-H.: Erfassung dreidimensionaler Bahnlinien und Geschwindigkeitsfelder mittels automatischer Bildverarbeitung. Mitt. aus dem M. P. I. für Strömungsforschunq, Göttingen (1991) Nr. 101.Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1992

Authors and Affiliations

  • H.-H. Bartels
    • 1
    • 2
  • W. J. Hiller
    • 1
  • T. A. Kowalewski
    • 1
  1. 1.Max-Planck-Institut für StrömungsforschungGöttingenGermany
  2. 2.Bayer A. G. Wuppertal-ElberfeldGermany

Personalised recommendations