It is well established that strakes are effective at suppressing vortex-induced vibrations (VIV). Fairings are an attractive alternative to helical strakes, because they are a low drag VIV suppression solution. The paper presents an evaluation of a fairing design, based on numerical simulations — to be complemented at a later stage with current tank testing. This paper documents the computational fluid dynamics (CFD) and finite element analysis (FEA) of the evaluation: (1) 3-D CFD in the laboratory scale: 4.5 inch pipe, 3 ft/s current speed, (2) 3-D CFD in the full scale: 14 inch riser, 4 knots current speed, and (3) 3-D FEA of the full-scale fairing module latching mechanism, under service loads corresponding to 4 knots current speed. The analysis results show that the fairing design (1) is effective at suppressing VIV, (2) yields a low drag coefficient (0.52 at Re ∼ 106), and (3) its latching mechanism is adequate for use in calm sea states with 4 knots current speeds.
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ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering
July 1–6, 2012
Rio de Janeiro, Brazil
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-4492-2
PROCEEDINGS PAPER
Fairing Evaluation Based on Numerical Simulation
Juan P. Pontaza,
Juan P. Pontaza
Shell International Exploration and Production, Inc., Houston, TX
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Mohan Kotikanyadanam,
Mohan Kotikanyadanam
Shell India Markets Pvt. Ltd., Bangalore, India
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Piet Moeleker,
Piet Moeleker
Shell India Markets Pvt. Ltd., Bangalore, India
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Raghu G. Menon,
Raghu G. Menon
Shell India Markets Pvt. Ltd., Bangalore, India
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Shankar Bhat
Shankar Bhat
Sarawak Shell Bhd., Kuala Lumpur, Malaysia
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Juan P. Pontaza
Shell International Exploration and Production, Inc., Houston, TX
Mohan Kotikanyadanam
Shell India Markets Pvt. Ltd., Bangalore, India
Piet Moeleker
Shell India Markets Pvt. Ltd., Bangalore, India
Raghu G. Menon
Shell India Markets Pvt. Ltd., Bangalore, India
Shankar Bhat
Sarawak Shell Bhd., Kuala Lumpur, Malaysia
Paper No:
OMAE2012-83883, pp. 897-905; 9 pages
Published Online:
August 23, 2013
Citation
Pontaza, JP, Kotikanyadanam, M, Moeleker, P, Menon, RG, & Bhat, S. "Fairing Evaluation Based on Numerical Simulation." Proceedings of the ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering. Volume 5: Ocean Engineering; CFD and VIV. Rio de Janeiro, Brazil. July 1–6, 2012. pp. 897-905. ASME. https://doi.org/10.1115/OMAE2012-83883
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