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A turbulent-flow dye-streak technique

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Abstract

A new formulation of shear-thickening and high extensional-viscosity fluids is used to suspend white pigment to form a dye streak which resists breakup in turbulent and complex separated flows. Examples from flow around cylinders at Reynolds numbers to 30 000, and in a turbulent boundary layer, show the capability of the technique.

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Authors and Affiliations

  1. Mechanical Engineering Dept., San Diego State University, 92182, San Diego, CA, USA

    J. W. Hoyt

  2. Civil Engineering Dept., University of Bristol, BS8 1TR, Bristol, UK

    R. H. J. Sellin

Authors
  1. J. W. Hoyt
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  2. R. H. J. Sellin
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Additional information

This work was made possible by support from the University of Bristol and the U.S. National Science Foundation (Grant CTS-9411980).

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Hoyt, J.W., Sellin, R.H.J. A turbulent-flow dye-streak technique. Experiments in Fluids 20, 38–41 (1995). https://doi.org/10.1007/BF00190596

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  • DOI: https://doi.org/10.1007/BF00190596

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