Hydrodynamic instability of separated viscous flow around a circular cylinder |
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| Authors: | A. I. Aleksyuk V. P. Shkadova V. Ya. Shkadov |
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| Affiliation: | (1) Department of Applied Physics, Eindhoven University of Technology, Den Dolech 2, Eindhoven, The Netherlands |
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| Abstract: | A uniform viscous flow around a circular cylinder is studied numerically in the Reynolds number range from 0 to 500. It is shown that the existence and the basic properties of self-oscillating regimes are specified by the evolution of their hydrodynamic instability. It is found that the vortex formation in a near wake is associated with the separation zone dynamics in the main flow. The values of critical Reynolds numbers for the four successive bifurcations of the self-oscillating regimes of flow are obtained. An interpretation of experimental data on the vortices in the near wake is discussed. |
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