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dc.contributor.authorFu, Ping
dc.contributor.authorLeira, Bernt Johan
dc.contributor.authorMyrhaug, Dag
dc.date.accessioned2019-05-02T11:53:52Z
dc.date.available2019-05-02T11:53:52Z
dc.date.created2018-12-10T20:25:19Z
dc.date.issued2018
dc.identifier.citationOcean Engineering. 2018, 162 331-340.nb_NO
dc.identifier.issn0029-8018
dc.identifier.urihttp://hdl.handle.net/11250/2596317
dc.description.abstractThe present paper provides a method to estimate the clearance between two flexible risers in tandem arrangement by taking into account the hydrodynamic wake interference when subjected to a current flow and a combined current plus waves flow. Modelling of the wake interference in the near wake field is based on the modification of the mean wake velocity deficit in the far wake field. Two modified wake models are introduced in the presented paper. The wake effects in steady current and in current plus waves are investigated by using both wake models. For the current-only flow, the deflection shapes of a pair of tandem risers in steep-wave configuration are presented, highlighting the importance of the wake effect on clearance estimation. For combined current plus waves, the wake interference is investigated by considering the position-dependent drag force, with different combinations of riser natural frequency and wave frequency. The collision failure probability is predicted when the risers are subjected to current plus random waves.nb_NO
dc.language.isoengnb_NO
dc.publisherElseviernb_NO
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/deed.no*
dc.titleThe effect of local wake model on collision probability for risers subjected to current and random wavesnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionacceptedVersionnb_NO
dc.source.pagenumber331-340nb_NO
dc.source.volume162nb_NO
dc.source.journalOcean Engineeringnb_NO
dc.identifier.doi10.1016/j.oceaneng.2018.04.099
dc.identifier.cristin1641377
dc.description.localcode© 2018. This is the authors’ accepted and refereed manuscript to the article. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/nb_NO
cristin.unitcode194,64,20,0
cristin.unitnameInstitutt for marin teknikk
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode1


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Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal
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