Vortex shedding from tapered plates

Vortex shedding from tapered plates An experimental study of vortex shedding behind flat plates placed normal to an airstream is presented for Reynolds numbers of O(104). Apart from a parallel-sided plate used as the reference case, all the plates were tapered in the spanwise direction so that the cross-stream width of the plate varied linearly with spanwise distance along it. The data allow significant extension of the conclusions of previously published work and demonstrate that "cellular" shedding occurs in many cases. Within each (spanwise) cell, the shedding frequency is constant despite the changing plate width, and it is shown that the location and extent of the cells are functions of the degree of taper, the spanwise aspect ratio and the end conditions. Unlike the corresponding case of tapered cylinders (i.e. cones), the Reynolds number is not normally a dominant parameter. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Experiments in Fluids Springer Journals

Vortex shedding from tapered plates

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Publisher
Springer-Verlag
Copyright
Copyright © 2002 by Springer-Verlag
Subject
Engineering; Engineering Fluid Dynamics; Fluid- and Aerodynamics; Engineering Thermodynamics, Heat and Mass Transfer
ISSN
0723-4864
eISSN
1432-1114
D.O.I.
10.1007/s00348-002-0458-z
Publisher site
See Article on Publisher Site

Abstract

An experimental study of vortex shedding behind flat plates placed normal to an airstream is presented for Reynolds numbers of O(104). Apart from a parallel-sided plate used as the reference case, all the plates were tapered in the spanwise direction so that the cross-stream width of the plate varied linearly with spanwise distance along it. The data allow significant extension of the conclusions of previously published work and demonstrate that "cellular" shedding occurs in many cases. Within each (spanwise) cell, the shedding frequency is constant despite the changing plate width, and it is shown that the location and extent of the cells are functions of the degree of taper, the spanwise aspect ratio and the end conditions. Unlike the corresponding case of tapered cylinders (i.e. cones), the Reynolds number is not normally a dominant parameter.

Journal

Experiments in FluidsSpringer Journals

Published: Jul 25, 2002

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