Using Particle Image Velocimetry (PIV) we investigate the influence of leading and trailing edge geometry on the wake flows of various elongated cylinders in smooth uniform flow. The results present a comparison between the mean wake flows, as well as the vortex shedding activity found to occur in each case. Pressure measurements were recorded on the surface of the cylinders to examine the corresponding fluctuating and mean forces exhibited by each model tested. Significant variations in the wake topology and aerodynamic behaviour of the four cylinder geometries tested were observed.

Volume Subject Area:
Fluids Engineering
Keywords:
bridge aerodynamics, particle image velocimetry, wakes, vortex shedding
Topics:
Bridges (Structures), Flow (Dynamics), Particulate matter, Vortex shedding, Wakes
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