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