Abstract
Flow over surface-mounted circular cylinders of finite height, with aspect ratios AR = 3 and 7 (AR = H/D, where H and D are the cylinder’s height and diameter, respectively), at a Reynolds number Re = 4.2 × 104, has been investigated using the snapshot proper orthogonal decomposition (POD) method and the swirling strength criterion. The instantaneous velocity fields in two spanwise elevations above the cylinder’s free end, at z/D = 0.016 and 0.08, were generated by a two-component particle image velocimetry (PIV) system. Of interest was to identify turbulent flow structures of different scales within the free-end flow field, and investigate how the AR affects these structures.
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Chakravarty, R., Rostamy, N., Bergstrom, D.J., Sumner, D. (2016). Visualization of the Flow Above the Free End of a Finite Cylinder. In: Zhou, Y., Lucey, A., Liu, Y., Huang, L. (eds) Fluid-Structure-Sound Interactions and Control. Lecture Notes in Mechanical Engineering. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-48868-3_31
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DOI: https://doi.org/10.1007/978-3-662-48868-3_31
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