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Image correlation velocimetry applied to discrete smoke-wire streaklines in turbulent pipe flow

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Abstract

Two-colour image correlation velocimetry is applied to distinct smoke-wire streaklines in turbulent pipe flow. A single frame from a 35-mm film camera is exposed to two consecutive flashes, one from a red and one from a blue stroboscope. The resulting composite image is digitized, and the color components are extracted to obtain two images. Image correlation is then applied to estimate the velocity which is then compared with hot-wire velocity measurements.

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Acknowledgements

NSERC Operating Grant OGP 41747 supported this work. We thank Michelle Vigeant, Andrew Coward, Dave deJong and John Diep for their help. Thanks also to Professors Paul Dimotakis and Dimitri Papamoschou for assistance at the beginning of this endeavor.

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Authors and Affiliations

  1. Vortex Fluid Dynamics Lab, Department of Mechanical Engineering, University of Alberta, 4–9 Mechanical Engineering Bldg, Edmonton, Alberta, Canada

    C. P. Apps, T. Chen & L. Sigurdson

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  1. C. P. Apps
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  2. T. Chen
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  3. L. Sigurdson
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Correspondence to L. Sigurdson.

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Apps, C.P., Chen, T. & Sigurdson, L. Image correlation velocimetry applied to discrete smoke-wire streaklines in turbulent pipe flow. Exp Fluids 35, 288–290 (2003). https://doi.org/10.1007/s00348-003-0665-2

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  • DOI: https://doi.org/10.1007/s00348-003-0665-2

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