This paper compares model test data for risers with partial strake coverage to predictions made with the Vortex-Induced Vibration (VIV) prediction program SHEAR7 Versions 4.5 and 4.6. It is shown that new features in Version 4.6 substantially enhance the capability for predicting the VIV response of risers with partial coverage. Experimental data is taken from two large L/D tests: the NDP 38 m long riser tests and the Deepstar-Miami, 500 foot long riser. New methods are described for modeling risers partially covered with helical strakes. Key SHEAR7 parameters are recommended, based on parametric investigations to calibrate the model against the available experimental data. Recommended modeling procedures are described so as to facilitate implementation by SHEAR7 users in their VIV modeling tasks.
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ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering
June 19–24, 2011
Rotterdam, The Netherlands
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-4439-7
PROCEEDINGS PAPER
Modelling Risers With Partial Strake Coverage
Themistocles L. Resvanis,
Themistocles L. Resvanis
Massachusetts Institute of Technology, Cambridge, MA
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J. Kim Vandiver
J. Kim Vandiver
Massachusetts Institute of Technology, Cambridge, MA
Search for other works by this author on:
Themistocles L. Resvanis
Massachusetts Institute of Technology, Cambridge, MA
J. Kim Vandiver
Massachusetts Institute of Technology, Cambridge, MA
Paper No:
OMAE2011-49817, pp. 501-510; 10 pages
Published Online:
October 31, 2011
Citation
Resvanis, TL, & Vandiver, JK. "Modelling Risers With Partial Strake Coverage." Proceedings of the ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering. Volume 7: CFD and VIV; Offshore Geotechnics. Rotterdam, The Netherlands. June 19–24, 2011. pp. 501-510. ASME. https://doi.org/10.1115/OMAE2011-49817
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