The Measurement of Turbulent Structure Using PIV

  • T. R. Haydon
  • C. A. Greated
Conference paper
Part of the Fluid Mechanics and its Applications book series (FMIA, volume 36)

Abstract

Particle Image Velocimetry (PIV) is an optical technique for obtaining a spatial record of the velocities, at a point in time in a plane of a flow (Adrian, 1991). The application of PIV to turbulent flows is problematical due to the relatively large dynamic range of velocities and the 180° directional ambiguity inherent in the analysis using autocorrelation techniques. The use of image shifting overcomes these difficulties in essence, although the measurement of turbulent structures is still non-trivial. The values chosen for experimental parameters such as image-shift velocity, exposure, scan rate and seeding particle density affect the range of turbulent eddies that are resolved.

Keywords

Particle Image Velocimetry Break Water Large Dynamic Range Integral Length Scale Integral Time Scale 
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. Adrian, R.J. (1991)Particle Imaging Techniques for Experimental Fluid Dynamics. Ann. Rev. Fluid Mech., 23:261–304. ADSCrossRefGoogle Scholar
  2. Elgard Dam, C. (1995) Ph.D thesis Particle Image Velocimetry, Accuracy of the Method with Particular Reference to Turbulent Flows Google Scholar
  3. George, R., Flick, R.E., Guza, R.T. (1994)Observations of turbulence in the surf zone. J. Geophys. Research, 99:801–810.ADSCrossRefGoogle Scholar
  4. Agrawal, Y. C., Terray, E. A., Donelan, M. A., Hwang, P. A., WilliamsIII, A. J., Drennan, W. M., Kahma, K. K. and Kitaigorogskii, S. A. (1992)Enhanced dissipation of kinetic energy beneath surface waves Nature 359:219–20.Google Scholar
  5. Kraichnan, R.H., Montgomery, D. (1979)Two-dimensional turbulence Reports on Progress in Physics.Google Scholar
  6. Battjes, J. A., Sakai, T. (1981) 111:421–437.Velocity field in a steady breaker Google Scholar
  7. Rapp, R.J., Melville, W.K. (1990)Laboratory Measurements of Deep Water Breaking Waves. Phil. Trans. R. Soc. Lond. A 331:735–800.ADSCrossRefGoogle Scholar

Copyright information

© Kluwer Academic Publishers 1996

Authors and Affiliations

  • T. R. Haydon
    • 1
  • C. A. Greated
    • 1
  1. 1.Fluid Dynamics Unit, Department of Physics and, AstronomyThe University of EdinburghEdinburghUK

Personalised recommendations