Simultaneous measurements of the fluctuating wall pressure along the cylinder span were used to examine the spanwise characteristics of the vortex-shedding for yaw angles varying from α = 60° to α = 90°. The Reynolds number based upon the diameter of the cylinder was 56,100. The results indicate that yawing the cylinder to the mean flow direction causes the vortex-shedding in the wake to become more disorderly. This disorder is initiated at the upstream end of the cylinder and results in a rapid decrease in correlation length, from 3.3D for α = 90° to 1.1D for α = 60°. The commonly used independence principle was shown to predict the vortex-shedding frequency reasonably well along the entire cylinder span for α > 70°, but did not work as well for α = 60°.
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ASME 2009 Pressure Vessels and Piping Conference
July 26–30, 2009
Prague, Czech Republic
Conference Sponsors:
- Pressure Vessels and Piping
ISBN:
978-0-7918-4367-3
PROCEEDINGS PAPER
The Spanwise Dependence of Vortex-Shedding From Yawed Circular Cylinders Available to Purchase
James D. Hogan,
James D. Hogan
University of New Brunswick, Fredericton, NB, Canada
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Joseph W. Hall
Joseph W. Hall
University of New Brunswick, Fredericton, NB, Canada
Search for other works by this author on:
James D. Hogan
University of New Brunswick, Fredericton, NB, Canada
Joseph W. Hall
University of New Brunswick, Fredericton, NB, Canada
Paper No:
PVP2009-77051, pp. 107-113; 7 pages
Published Online:
July 9, 2010
Citation
Hogan, JD, & Hall, JW. "The Spanwise Dependence of Vortex-Shedding From Yawed Circular Cylinders." Proceedings of the ASME 2009 Pressure Vessels and Piping Conference. Volume 4: Fluid-Structure Interaction. Prague, Czech Republic. July 26–30, 2009. pp. 107-113. ASME. https://doi.org/10.1115/PVP2009-77051
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