Summary
Formation of the secondary vortex street in the wake of a circular cylinder was studied at Reynolds numbers lower than 160 by means of smoke wire technique of flow visualization and of hotwire technique. It was seen by flow patterns and equi-vorticity lines that the secondary vortex street is formed by merging of vortices in the primary vortex street. When the wake is forced with a sound of a given frequency, number of vortices to merge into a larger one is two or three, corresponding to the forcing frequency, which is one half or one third of the frquency of velocity fluctuations in the primary vortex street.
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© 1983 Springer, Berlin Heidelberg New York
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Matsui, T., Okude, M. (1983). Formation of the Secondary Vortex Street in the Wake of a Circular Cylinder. In: Dumas, R., Fulachier, L. (eds) Structure of Complex Turbulent Shear Flow. International Union of Theoretical and Applied Mechanics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-81991-9_16
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DOI: https://doi.org/10.1007/978-3-642-81991-9_16
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