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Three-dimensional measurements of vortex breakdown

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Abstract

Leading-edge vortex formation and breakdown have been measured over a periodically plunging non-slender delta wing at a high angle of attack, using a three-dimensional particle-tracking method. A very rare type of vortex breakdown in the form of a double helix has been captured in the phase-averaged flow at a specific phase of the oscillation cycle.

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Acknowledgments

This work was sponsored by the Air Force Office of Scientific Research, Air Force Material Command, USAF under grant number FA8655-10-1-3093, monitored by Dr. D. Smith, as well as the Engineering and Physical Sciences Research Council (EPSRC) Studentship.

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Authors and Affiliations

  1. University of Bath, Bath, BA2 7AY, UK

    D. E. Calderon, Z. Wang & I. Gursul

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  1. D. E. Calderon
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  2. Z. Wang
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  3. I. Gursul
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Correspondence to I. Gursul.

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Calderon, D.E., Wang, Z. & Gursul, I. Three-dimensional measurements of vortex breakdown. Exp Fluids 53, 293–299 (2012). https://doi.org/10.1007/s00348-012-1317-1

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  • DOI: https://doi.org/10.1007/s00348-012-1317-1

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