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The Effect of End-Plates on the Two-Dimensionality of a Vortex Wake

Published online by Cambridge University Press:  07 June 2016

J. M. R. Graham*
Affiliation:
Cambridge University Engineering Department
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Summary

Spanwise velocity correlations of the turbulent vortices shed by a two-dimensional bluff body of D-section are presented for different aspect ratios of the shedding body between end-plates. From these it is shown that the vortices are only shed two-dimensionally when the gap between the end-plates is less than or equal to four times the base height of the shedding body.

Type
Research Article
Copyright
Copyright © Royal Aeronautical Society. 1969

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References

1. Gerrard, J. H. Three-dimensional structure of the wake of a circular cylinder. Journal of Fluid Mechanics. Vol. 25, Pt. 1, p. 143, 1966.Google Scholar
2. El-Baroudi, M. Y. Measurement of two-point correlations of velocity near a circular cylinder shedding a Kármán vortex street. University of Toronto Institute of Aero-physics, TN 31, 1960.Google Scholar
3. Prendergast, V. Measurement of two-point correlations of the surface pressure on a circular cylinder. University of Toronto Institute of Aerophysics, TN 23, 1958.Google Scholar
4. Keefe, R. T. An investigation of the fluctuating forces acting on a stationary circular cylinder in a subsonic stream and of the associated sound field. University of Toronto Institute of Aerophysics, Report 76, 1961.Google Scholar
5. Graham, J. M. R. The structure of the turbulent boundary layer artificially produced by roughness. PhD Thesis, London University, 1968.Google Scholar