Abstract
The three-dimensional development of the near wake behind two-dimensional bodies subjected to periodic spanwise perturbations in its initial conditions was studied both experimentally and numerically at moderate Reynolds numbers. The existence of two distinct, three-dimensional vorticity modes is presented, and a comparative analysis of their symmetry characteristics is given. It is shown that depending on the initial conditions the counter-rotating pairs of streamwise vortex tubes forming in the braids induce an undulation in the spanwise Karman-like vortices resulting in either an in phase or a varicose configuration.
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© 1989 Springer-Verlag Berlin, Heidelberg
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Lasheras, J.C., Meiburg, E. (1989). Three-Dimensional Vorticity Dynamics in the Near Wake Behind Two-Dimensional Bodies. In: Fernholz, HH., Fiedler, H.E. (eds) Advances in Turbulence 2. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-83822-4_10
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DOI: https://doi.org/10.1007/978-3-642-83822-4_10
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