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Numerical Modeling of Vortex-Induced Vibrations of Two Flexible Risers

[+] Author Affiliations
Marlow Springer, Rajeev K. Jaiman, Steve Cosgrove

ACUSIM Software, Inc., Mountain View, CA

Yiannis Constantinides

Chevron Energy Technology Co., Bellaire, TX

Paper No. OMAE2009-79801, pp. 749-756; 8 pages
  • ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 5: Polar and Arctic Sciences and Technology; CFD and VIV
  • Honolulu, Hawaii, USA, May 31–June 5, 2009
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-4345-1 | eISBN: 978-0-7918-3844-0
  • Copyright © 2009 by ASME


Due to the complex interactions of vortex-induced vibrations (VIV) and downstream wake dynamics, the design of riser arrays has been an area of great uncertainty in the offshore industry. Numerical methodology can play an important role in predicting the hydrodynamic forces and motion of riser arrays from both design and operational standpoints. The focus of this study is to investigate the VIV response of two flexible risers in cross-flow using a CFD solver. Bare and straked geometries are simulated, and the results are successfully compared against experimental results. The basic hydrodynamic features are well captured and the numerical technique is an improvement over the existing empirical and experience-based methods.

Copyright © 2009 by ASME



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