Strouhal-Reynolds number relationship for vortex streets.

@article{Ponta2004StrouhalReynoldsNR,
  title={Strouhal-Reynolds number relationship for vortex streets.},
  author={Fernando Luis Ponta and Hassan Aref},
  journal={Physical review letters},
  year={2004},
  volume={93 8},
  pages={084501}
}
A rationale for the empirically observed Strouhal-Reynolds number relation for vortex shedding in the wake of a cylinder is provided. This rationale derives from a mechanism of vortex formation observed in numerical simulations of two-dimensional vortex shedding coupled with an order of magnitude estimate of the terms in the vorticity transport equation based on this mechanism. 
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