Secondary instability in the wake of a circular cylinder
- 1 June 1996
- journal article
- Published by AIP Publishing in Physics of Fluids
- Vol. 8 (6) , 1683-1685
- https://doi.org/10.1063/1.868939
Abstract
Secondary instability of flow past a circular cylinder is examined using highly accurate numerical methods. The critical Reynolds number for this instability is found to be Rec=188.5. The secondary instability leads to three‐dimensionality with a spanwise wavelength at onset of 4 cylinder diameters. Three‐dimensional simulations show that this bifurcation is weakly subcritical.Keywords
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