Prototype Reynolds Number VIV Tests on a Full-Scale Rigid Riser
Slender offshore structures in deep water subjected to currents may experience vortex-induced vibrations (VIV), which can cause significant fatigue damage. Extensive experimental researches have been conducted to study the VIV in the past several decades. However, most of the experimental works have...
Published in: | Volume 2: Prof. Carl Martin Larsen and Dr. Owen Oakley Honoring Symposia on CFD and VIV |
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Online Access: | http://hdl.handle.net/11250/2457586 https://doi.org/10.1115/OMAE2017-61415 |
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ftsintef:oai:sintef.brage.unit.no:11250/2457586 2023-05-15T14:25:29+02:00 Prototype Reynolds Number VIV Tests on a Full-Scale Rigid Riser Yin, Decao Lie, Halvor Baarholm, Rolf Jarle 2017 application/pdf http://hdl.handle.net/11250/2457586 https://doi.org/10.1115/OMAE2017-61415 eng eng The American Society of Mechanical Engineers ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering - Volume 2: Prof. Carl Martin Larsen and Dr. Owen Oakley Honoring Symposia on CFD and VIV ASME Digital collection;OMAE2017-61415 urn:isbn:978-0-7918-5764-9 http://hdl.handle.net/11250/2457586 https://doi.org/10.1115/OMAE2017-61415 cristin:1500509 Copyright © 2017 by ASME Vortex-induced vibration Pipeline risers Engineering prototypes Reynolds number Chapter 2017 ftsintef https://doi.org/10.1115/OMAE2017-61415 2021-08-04T12:00:17Z Slender offshore structures in deep water subjected to currents may experience vortex-induced vibrations (VIV), which can cause significant fatigue damage. Extensive experimental researches have been conducted to study the VIV in the past several decades. However, most of the experimental works have small-scale models and relatively low Reynolds number (Re) - ‘subcritical’ or even lower Reynolds number regime. There is a lack of full understanding the VIV in prototype Re flow regime. Applying the results with low Re to a full scale riser with prototype Re might have uncertainties due to the scaling effects. In addition, the surface roughness of the riser is also an important parameter, especially in prototype Re regime. In present study, two full-scale rigid riser models with different surface roughness ratios were tested in the towing tank of MARINTEK in 2014. Stationary tests, pure cross-flow (CF) free oscillation tests and forced/controlled motion tests were carried out. Several conclusions could be made: • The drag coefficient is dependent on the Re number and surface roughness ratio. • At critical and supercritical flow regimes, the displacement amplitude ratio is less sensitive to Re than that at lower Re. The displacement amplitude ratio in subcritical flow regime is significantly larger than that in critical and supercritical flow regimes. • Two excitation regions for the ‘smooth riser’ and one excitation region for the ‘rough riser’ are identified acceptedVersion Book Part Arctic SINTEF Open (Brage) Volume 2: Prof. Carl Martin Larsen and Dr. Owen Oakley Honoring Symposia on CFD and VIV |
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Open Polar |
collection |
SINTEF Open (Brage) |
op_collection_id |
ftsintef |
language |
English |
topic |
Vortex-induced vibration Pipeline risers Engineering prototypes Reynolds number |
spellingShingle |
Vortex-induced vibration Pipeline risers Engineering prototypes Reynolds number Yin, Decao Lie, Halvor Baarholm, Rolf Jarle Prototype Reynolds Number VIV Tests on a Full-Scale Rigid Riser |
topic_facet |
Vortex-induced vibration Pipeline risers Engineering prototypes Reynolds number |
description |
Slender offshore structures in deep water subjected to currents may experience vortex-induced vibrations (VIV), which can cause significant fatigue damage. Extensive experimental researches have been conducted to study the VIV in the past several decades. However, most of the experimental works have small-scale models and relatively low Reynolds number (Re) - ‘subcritical’ or even lower Reynolds number regime. There is a lack of full understanding the VIV in prototype Re flow regime. Applying the results with low Re to a full scale riser with prototype Re might have uncertainties due to the scaling effects. In addition, the surface roughness of the riser is also an important parameter, especially in prototype Re regime. In present study, two full-scale rigid riser models with different surface roughness ratios were tested in the towing tank of MARINTEK in 2014. Stationary tests, pure cross-flow (CF) free oscillation tests and forced/controlled motion tests were carried out. Several conclusions could be made: • The drag coefficient is dependent on the Re number and surface roughness ratio. • At critical and supercritical flow regimes, the displacement amplitude ratio is less sensitive to Re than that at lower Re. The displacement amplitude ratio in subcritical flow regime is significantly larger than that in critical and supercritical flow regimes. • Two excitation regions for the ‘smooth riser’ and one excitation region for the ‘rough riser’ are identified acceptedVersion |
format |
Book Part |
author |
Yin, Decao Lie, Halvor Baarholm, Rolf Jarle |
author_facet |
Yin, Decao Lie, Halvor Baarholm, Rolf Jarle |
author_sort |
Yin, Decao |
title |
Prototype Reynolds Number VIV Tests on a Full-Scale Rigid Riser |
title_short |
Prototype Reynolds Number VIV Tests on a Full-Scale Rigid Riser |
title_full |
Prototype Reynolds Number VIV Tests on a Full-Scale Rigid Riser |
title_fullStr |
Prototype Reynolds Number VIV Tests on a Full-Scale Rigid Riser |
title_full_unstemmed |
Prototype Reynolds Number VIV Tests on a Full-Scale Rigid Riser |
title_sort |
prototype reynolds number viv tests on a full-scale rigid riser |
publisher |
The American Society of Mechanical Engineers |
publishDate |
2017 |
url |
http://hdl.handle.net/11250/2457586 https://doi.org/10.1115/OMAE2017-61415 |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering - Volume 2: Prof. Carl Martin Larsen and Dr. Owen Oakley Honoring Symposia on CFD and VIV ASME Digital collection;OMAE2017-61415 urn:isbn:978-0-7918-5764-9 http://hdl.handle.net/11250/2457586 https://doi.org/10.1115/OMAE2017-61415 cristin:1500509 |
op_rights |
Copyright © 2017 by ASME |
op_doi |
https://doi.org/10.1115/OMAE2017-61415 |
container_title |
Volume 2: Prof. Carl Martin Larsen and Dr. Owen Oakley Honoring Symposia on CFD and VIV |
_version_ |
1766297869355057152 |