Strouhal-Reynolds number relationship for vortex streets

Phys Rev Lett. 2004 Aug 20;93(8):084501. doi: 10.1103/PhysRevLett.93.084501. Epub 2004 Aug 18.


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.