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Visualization of turbulence anisotropy by single exposure speckle photography

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Abstract

A new technique based on single exposure speckle photography is described that allows to measure the degree of anisotropy of turbulence in a flow with fluctuating fluid density or temperature.

Since anisotropy is linked to shear in a flow, the method is also a means for discriminating regions of different shear rate.

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References

  • Debrus S; Françon M; Grover CP; May M; Roblin ML (1972) Ground glass differential interferometer. Appl Opt 11: 853–857

    Google Scholar 

  • Erbeck R; Merzkirch W (1988) Speckle photographic measurements of turbulence in an air stream with fluctuating temperature. Exp Fluids 6: 89–93

    Google Scholar 

  • Fomin NA; Ragozin DS; Wintrich H; Merzkirch W (1992) Optical speckle pattern generated by turbulent density field. Proc. Int. Sem. Optical Methods and Data Processing in Heat and Fluid Flow, pp. 211–215. London: Inst Mech Engrs

    Google Scholar 

  • Françon M (1979) Laser speckle and applications in optics. New York: Academic Press

    Google Scholar 

  • Han Q (1993) Theorie und numerische Simulation der speckleoptischen Untersuchung eines anisotrop turbulenten Dichtefeldes. Dissertation, Universität Essen

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

    Google Scholar 

  • Köpf U (1972) Application of speckling for measuring the deflection of laser light by phase objects. Opt Commun 5: 347–350

    Google Scholar 

  • Merzkrch W (1995) Density-sensitive whole-field flow measurement by optical speckle photography. Exp Thermal Fluid Sci 10: 435–443

    Google Scholar 

  • Weiner MM (1967) Atmospheric turbulence in optical surveillance systems. Appl Opt 6: 1984–1997

    Google Scholar 

  • Wernekinck U; Merzkirch W; Fomin NA (1985) Measurement of light deflection in a turbulent density field. Exp Fluids 3: 206–208

    Google Scholar 

  • Wernekinck U; Merzkirch W (1987) Speckle photography of spatially extended refractive-index fields. Appl Opt 26: 31–32

    Google Scholar 

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Author information

Author notes

  1. W. Merzkirch & H. Wintrich

    Present address: BFI Entsorgungstechnologie GmbH, D-40883, Ratingen, Germany

Authors and Affiliations

  1. Heat and Mass Transfer Institute, 220072, Minsk, Belarus

    N. Fomin & D. Vitkin

  2. Lehrstuhl für Strömungslehre, Universität Essen, D-45117, Essen, Germany

    W. Merzkirch & H. Wintrich

Authors
  1. N. Fomin
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  2. W. Merzkirch
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  3. D. Vitkin
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  4. H. Wintrich
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Additional information

The research described in this publication was made possible in part by Grant RWB 000 from the International Science Foundation. The authors are also grateful to Deutsche Forschungsgemeinschaft (DFG) for partial financial support (Me 484/18).

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Fomin, N., Merzkirch, W., Vitkin, D. et al. Visualization of turbulence anisotropy by single exposure speckle photography. Experiments in Fluids 20, 476–479 (1996). https://doi.org/10.1007/BF00189389

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  • DOI: https://doi.org/10.1007/BF00189389

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