Abstract
Experiments were performed to study the flow behind a linearly tapered cylinder, in order to gain more information about laminar vortex shedding behind the cylinder, the evolution of the velocity field in the far wake of the cylinder, and also chaotic vortex shedding behind the cylinder. For laminar vortex shedding, scalings were found for the shedding frequency, difference frequency, and shedding cell size. The behavior of the cylinders was found be less orderly as the amount of taper increased. In the far wake, the velocity fluctuations evolve in two phases to chaos, partially by transferring energy from high to low frequency. In the chaotic case, the rigid positioning of the cell boundaries breaks down, so that the number of vortices shed by cylinder becomes a monotonic function of spanwise position.
also Scripps Institution of Oceanography
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Lewis, C.G. and Charib, M. 1992 An exploration of the wake three dimensionalities caused by a local discontinuity in cylinder diameter. Plus. Fluids A 4 104–117.
Van Atta, C.W. and Piccirillo, P. 1990 Topological defects in vortex streets behind tapered circular cylinders at low Reynolds numbers. New Trends in Non-linear Dynamics and Pattern Forming Phenomena, ed P. Coullet and P. IIuerre, 243–250.
Piccirillo, Paul S. and Van Atta, C.W. 1991 An Experimental Study of Flow Behind a Uniformly Tapered Cylinder. AIAA Paper 91–0750 AIAA 29th Aerospace Sciences Meeting, Reno.
Piccirillo, Paul S. and Van Atta, C.W. 1992 An experimental study of vortex shedding behind linearly tapered cylinders at low Reynolds numbers. J. Fluid Mech. in press.
Caster, M. 1969 Vortex shedding from slender cones at low Reynolds numbers. J. Fluid Mech. 38 565–576.
Caster, M. 1971 Vortex shedding from circular cylinders at low Reynolds numbers. J. Fluid Mech. 46 749–756.
Dallard, T. and Browand, F.K. 1992 Scale transitions at defect sites in the mixing layer: Application of the 2-D arc Wavelet transform. submitted to J. Fluid Mech..
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1993 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Piccirillo, P.S., Van Atta, C.W. (1993). Experiments on Vortex Shedding Behind Linearly Tapered Cylinders. In: Eckelmann, H., Graham, J.M.R., Huerre, P., Monkewitz, P.A. (eds) Bluff-Body Wakes, Dynamics and Instabilities. International Union of Theoretical and Applied Mechanics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-00414-2_76
Download citation
DOI: https://doi.org/10.1007/978-3-662-00414-2_76
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-662-00416-6
Online ISBN: 978-3-662-00414-2
eBook Packages: Springer Book Archive