Kill Line Model Cross Flow Inline Coupled Vortex-Induced Vibration
Name
v002t08a010-omae2017-61191.pdf
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1.84 MB
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Author(s)
Wu, Baiheng
Le Garrec, Jorlyn M.
Fan, Dixia
Triantafyllou, Michael S
Date Issued
June 2017
Journal
Volume 2: Prof. Carl Martin Larsen and Dr. Owen Oakley Honoring Symposia on CFD and VIV
Publisher
ASME International
Citation
Wu, Baiheng, Jorlyn Le Garrec, Dixia Fan, and Michael S. Triantafyllou. “Kill Line Model Cross Flow Inline Coupled Vortex-Induced Vibration.” Volume 2: Prof. Carl Martin Larsen and Dr. Owen Oakley Honoring Symposia on CFD and VIV (June 25, 2017).
Version
Final published version
Abstract
Currents and waves cause flow-structure interaction problems in systems installed in the ocean. Particularly for bluff bodies, vortices form in the body wake, which can cause strong structural vibrations (Vortex-Induced Vibrations, VIV). The magnitude and frequency content of VIV is determined by the shape, material properties, and size of the bluff body, and the nature and velocity of the oncoming flow. Riser systems are extensively used in the ocean to drill for oil wells, or produce oil and gas from the bottom of the ocean. Risers of ten consist of a central pipe, surrounded by several smaller cylinders, including the kill and choke lines. We present a series of experiments involving forced in-line and cross flow motions of short rigid sections of a riser containing 6 symmetrically arranged kill and choke lines. The experiments were carried out at the MIT Towing Tank. We present a systematic database of the hydrodynamic coefficients, consisting of the forces in phase with velocity and the added mass coefficients that are also suitable to be used with semi-empirical VIV predicting codes.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1115/OMAE2017-61191
