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DPIV in the wake of a tandem arrangement of two flexible circular cylinders

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Abstract

Visualization of the wake of a system of two circular cylinders in tandem is presented through Digital Particle Image Velocimetry results in a plane perpendicular to the models’ axes. Both cylinder models have an aspect ratio (length over diameter) of almost 100, a mass ratio (mass divided by mass of displaced fluid) under 2, and they are flexible and free to move in the in-line and cross-flow directions. A supporting structure provided attachment of both models through universal joints at each end and the cylinders were exposed to a uniform flow profile over the lower 45% of their lengths, producing vortex-induced vibrations with wake interactions. The centre to centre separation between the models could be varied and data is shown here for three separations of 2, 3 and 4 diameters.

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Acknowledgements

Work funded by Universitat Rovira i Virgili (URV) through grants 2006AIRE-03 and 2007ACCES-14. F.J. Huera-Huarte is a Marie Curie Research Fellow (PIOF-GA-2008-219429). Special thanks to Department of Aeronautics of Imperial College London.

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Authors and Affiliations

  1. Graduate Aerospace Laboratories, California Institute of Technology, Pasadena, CA, 91125, USA

    F. J. Huera-Huarte

  2. Department of Aeronautics, Imperial College London, London, SW7 2AZ, UK

    P. W. Bearman

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  1. F. J. Huera-Huarte
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  2. P. W. Bearman
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Correspondence to F. J. Huera-Huarte.

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Huera-Huarte, F.J., Bearman, P.W. DPIV in the wake of a tandem arrangement of two flexible circular cylinders. J Vis 13, 195–202 (2010). https://doi.org/10.1007/s12650-010-0024-3

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  • DOI: https://doi.org/10.1007/s12650-010-0024-3

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