Effects of Strake Coverage and Marine Growth on Flexible Cylinder VIV
Name
Effects of strake.pdf
Size
1.31 MB
Format
Adobe PDF
Checksum (MD5)
c3e73f2b8c8a6a0ab9593beb58d46efd
Author(s)
Resvanis, Themistocles L
Rao, Zhibiao
Vandiver, John Kim
Date Issued
June 2014
Journal
Volume 2: CFD and VIV
Publisher
American Society of Mechanical Engineers
Citation
Resvanis, Themistocles L., Zhibiao Rao, and J. Kim Vandiver. “Effects of Strake Coverage and Marine Growth on Flexible Cylinder VIV.” Volume 2: CFD and VIV (June 8, 2014).
Version
Final published version
Abstract
In this paper we present some results from the recent SHELL tests at the MARINTEK basin. The tests involved towing densely instrumented flexible cylinders at Reynolds numbers up to 220,000. The main objective is to present the experimental results describing the effectiveness of different amounts of strake coverage and to explore the influence of simulated marine growth. The data is presented in terms of CF response amplitudes and rainflow-counted damage rates due to the combined CF and IL bending stresses. All results are compared with the bare cylinder cases which will be used as a reference to determine how effective the strakes are in suppressing VIV and how this effectiveness can be affected by marine growth. The results show that even small bare sections (missing strakes) can lead to significant VIV response. We also observe that moderate amounts of marine growth can quickly negate any suppression coming from the strakes.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Terms of Use
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/OMAE2014-24462
