Abstract
The flow above the free end of a surface-mounted finite-height circular cylinder was studied experimentally in a low-speed wind tunnel using particle image velocimetry. Velocity measurements were taken in horizontal and vertical planes above the free end at a Reynolds number of Re = 4.2 × 104. Four cylinder aspect ratios, of AR = 9, 7, 5, and 3, were examined. The turbulent boundary layer on the ground plane had a thickness of δ/D = 1.6. The results revealed details of the mean recirculation zone, reattachment position, critical points, and vortex patterns in the flow field above the free end. The sensitivity of the free-end flow field to changes in AR was much less pronounced than what is observed for the near-wake region.
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Rostamy, N., Sumner, D., Bergstrom, D.J., Bugg, J.D. (2014). Flow Above the Free End of a Surface-Mounted Finite-Height Cylinder. In: Zhou, Y., Liu, Y., Huang, L., Hodges, D. (eds) Fluid-Structure-Sound Interactions and Control. Lecture Notes in Mechanical Engineering. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-40371-2_24
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DOI: https://doi.org/10.1007/978-3-642-40371-2_24
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