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Benchmarking of VIV Suppression Systems

[+] Author Affiliations
Kenneth J. Schaudt

Schaudt.us, Houston, TX

Christopher Wajnikonis, Steve Leverette

SBM Atlantia, Houston, TX

Don Spencer

Oceanic Consulting Corporation, St. John’s, NL, Canada

Jie Xu

Memorial University of Newfoundland, St. John’s, NL, Canada

Rodney Masters

AIMS International, Inc., Houston, TX

Paper No. OMAE2008-57065, pp. 33-42; 10 pages
doi:10.1115/OMAE2008-57065
From:
  • ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering
  • Volume 3: Pipeline and Riser Technology; Ocean Space Utilization
  • Estoril, Portugal, June 15–20, 2008
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-4820-3 | eISBN: 0-7918-3821-8
  • Copyright © 2008 by ASME and SBM Atlantia

abstract

A new form of Vortex-Induced Vibration (VIV) suppression device, the AIMS Dual-fin Flow Splitter (ADFS), has been developed, tested and benchmarked against bare-pipe, 5d and 15d pitch strakes and conventional teardrop fairings. Testing included high-mode number in-situ tests as well as low Reynolds number (<300,000) and high Reynolds number (<1.9 million) forced and free tank tests. Finally, wind tunnel tests and in-water Particle Image Velocimetry (PIV) were used to test the hypothesis that the dual-fin flow splitter replaces the oscillating wake of a blunt body with a stable, attached circulation behind the body and between the fins. Such a replacement was hypothesized to result in reduced drag, and the elimination of almost all VIV. The paper will describe the testing program and results, and present the incorporation of the test results into riser models.

Copyright © 2008 by ASME and SBM Atlantia

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