Skip to main content
Log in

An investigation of the spatial resolution requirements for two-point correlation measurements using LDV

  • Technical Notes
  • Published:
Experiments in Fluids Aims and scope Submit manuscript

Abstract

The spatial resolution requirements for accurate two-point correlation measurements at small separations are investigated. Practical guidelines in terms of characteristic measuring volume sizes and estimated Kolmogorov length scales are given. Sample measurements of two-point one-component longitudinal correlations on the centerline of a turbulent jet are presented.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  • Benak M; Sturm M; Tropea C; Nobach H; Fuchs W; Müller E (1993) Correlation estimators for two-point laser Doppler anemometry. In: Laser Anemometry: Advances and Applications — Proceedings of the Fifth International Conference, Proc. SPIE 2052: 613–621

  • Bradshaw P; Ferriss DH; Johnson RF (1964) Turbulence in the noise-producing region of a circular jet. J Fluid Mech 19: 591–624

    Google Scholar 

  • Cenedese A; Romano GP; Di Felice F (1991) Experimental testing of Taylor's hypothesis by L.D.A. in highly turbulent flow. Exp Fluids 11: 351–358

    Google Scholar 

  • Hinze JO (1975) Turbulence, New York: McGraw-Hill

    Google Scholar 

  • Johns RJR; Pitcher GF; Winklhofer E (1986) Measurement of spatial correlations in a turbulent flow with a two-component back-scatter LDA system. In: Proceedings of the fourth international symposium on applications of laser anemometry to fluid mechanics, Lisbon

  • Laurence JC (1956) Intensity, scale, and spectra of turbulence in the mixing region of a subsonic jet. NACA Rep. no 1292

  • Romano GP (1993) Two points velocity measurements using LDA: spatial and temporal analysis in a turbulent boundary layer. In: Laser Anemometry: Advances and Applications — Proceedings of the Fifth International Conference, Proc. SPIE 2052: 597–604

  • Sami S; Carmody T; Rouse H (1967) Jet diffusion in the region of flow establishment. J Fluid Mech 27: 231–252

    Google Scholar 

  • Tennekes H; Lumley JL (1972) A first course in turbulence. Cambridge, Massachusetts: The MIT Press

    Google Scholar 

  • Townsend AA (1976) The structure of turbulent shear flow. Cambridge: Cambridge University Press

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Additional information

Financial support from NUTEK, the Swedish National Board for Industrial and Technical Development, is acknowledged.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Eriksson, J.G., Karlsson, R.I. An investigation of the spatial resolution requirements for two-point correlation measurements using LDV. Experiments in Fluids 18, 393–396 (1995). https://doi.org/10.1007/BF00211398

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00211398

Keywords

Navigation