Two rigid cylinders attached to a vertically cantilevered supporting rod are towed in a towing tank. The two cylinders are otherwise identical, apart from that one has a smooth surface while the other has triple-start helical grooves cut into its surface. The cross flow VIV responses are compared and it becomes clear that the grooves are useful in suppressing the VIV response with the peak amplitude reduced by close to 70%.

Volume Subject Area:
CFD and VIV Symposium
Topics:
Testing, Vortex-induced vibration, Cylinders, Cross-flow, Model basin
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Copyright © 2006
 by ASME
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