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dc.contributor.authorWu, Jie
dc.contributor.authorLekkala, Malakonda K. Reddy
dc.contributor.authorOng, Muk Chen
dc.date.accessioned2020-10-26T11:58:38Z
dc.date.available2020-10-26T11:58:38Z
dc.date.created2020-10-06T12:15:47Z
dc.date.issued2020-01-30
dc.identifier.citationApplied Sciences. 2020, 10 .en_US
dc.identifier.issn2076-3417
dc.identifier.urihttps://hdl.handle.net/11250/2685000
dc.description.abstractThis paper presents a numerical algorithm used together with a Finite-Element based Vortex-Induced Vibration (VIV) prediction software VIVANA to obtain a hydrodynamic force coefficient database based on response measurements of flexible riser VIV model test of staggered buoyancy elements. The excitation coefficient database is parameterized; and the representative parameters are systematically varied in VIVANA simulations until the predicted responses in terms of mode number, response frequency, root-mean-square (RMS) response amplitude, and RMS curvature agree well with the experimental data under same flow and boundary conditions. An optimal set of force coefficient database for both the buoyancy element and the bare riser section is obtained and a significant improvement in VIV prediction by VIVANA is achieved. The obtained hydrodynamic force coefficient database can be also applied to other empirical VIV prediction programs. The sensitivity of using the same database to predict the VIV of different configurations has also been investigated.en_US
dc.language.isoengen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.subjectvortex-induced vibrationen_US
dc.subjectflexible riseren_US
dc.subjectstaggered buoyancy elementsen_US
dc.subjecthydrodynamic force coefficientsen_US
dc.titleNumerical Investigation of Vortex-Induced Vibrations of a Flexible Riser with Staggered Buoyancy Elementsen_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.description.versionpublishedVersionen_US
dc.rights.holder© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/)en_US
dc.source.pagenumber18en_US
dc.source.volume10en_US
dc.source.journalApplied Sciencesen_US
dc.identifier.doi10.3390/app10030905
dc.identifier.cristin1837536
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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