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The laminar horseshoe vortex

Published online by Cambridge University Press:  19 April 2006

C. J. Baker
C. J. Baker
Affiliation:
Cambridge University Engineering Department
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Abstract

The horseshoe vortex formed around the base of a cylinder by a separating laminar boundary layer has been investigated experimentally. Smoke flow visualization shows that both steady and unsteady vortex systems exist. Pressure distributions beneath both types of vortex system have been measured and the variation of the horseshoe vortex position on the plane of symmetry upstream of the cylinder has been determined. Unsteady horseshoe vortex systems are shown to have a complex oscillatory behaviour and the nature of this oscillatory behaviour is described. Using smoke flow visualization techniques some measurements have been made of the velocity distributions within horseshoe vortex systems.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 95 , Issue 2 , 28 November 1979 , pp. 347 - 367
Copyright
© 1979 Cambridge University Press

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References

Baker, C. J. 1978 Vortex flow around the bases of obstacles. Ph.D. thesis, University of Cambridge.
Schwind, R. 1962 The three-dimensional boundary layer near a strut. Gas Turbine Lab. Rep., MIT.Google Scholar
Timman, R. 1955 The theory of three-dimensional boundary layers. In Symp. on Boundary Layer Effects in Aerodyn. NPL.
Thwaites, B. 1960 Incompressible Aerodynamics. Oxford University Press.