Helical strake testing suggests path to VIV solution

摘要

Vibration in subsea risers caused by vortex shedding is a challenge to operations in deepwater. Proper management of vortex induced vibration (VIV) requires a balance between acceptable movement and the cost of suppression. To address the questions involved in planning configurations for marine risers, and to investigate the impacts of typical conditions affecting VIV, two programs were conducted consisting of tests along a tubular (just under 100 ft long) that was towed under a rotating arm at high speeds to simulate conditions similar to those a deepwater riser may encounter.