Experiments on Smooth Cantilevered Circular Cylinders in a Low-Turbulence Uniform Flow. Part 2. Fluctuating Loads on a Cantilever of Aspect Ratio 30.

摘要

Part 2 of this report presents details of an investigation into the fluctuating loads induced on a smooth, cantilevered circular cylinder with an aspect ratio of 30 immersed in a low-turbulence uniform flow. Experiments were carried out in a wind tunnel at Reynolds numbers of 4.4 x 10,000 and 6.6 x 10,000 and involved the measurement of fluctuating pressures and forces. Oil-flow visualization was performed to determine the flow pattern at the surface of the cylinder. The results reveal the nature of the disturbance induced by the flow around the free-end of a cantilever and the full extent of the spanwise variation of fluctuating pressures and forces.