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dc.contributor.authorAlsos, Hagbart Skage
dc.contributor.authorFaltinsen, Odd Magnus
dc.date.accessioned2018-12-17T10:09:54Z
dc.date.available2018-12-17T10:09:54Z
dc.date.created2018-11-15T15:37:13Z
dc.date.issued2018
dc.identifier.citationOcean Engineering. 2018, 169 442-456.nb_NO
dc.identifier.issn0029-8018
dc.identifier.urihttp://hdl.handle.net/11250/2577891
dc.description.abstractA new simplified method for analysis of 3D motion dynamics of axisymmetric slender bodies falling from air through water is presented. Slender-body theory for potential flow of incompressible water is combined with 2D + t theory to account for viscous cross-flow separation in the submerged phase. The effect of flow separation from the upstream end of a pipe plays an important role. Furthermore, asymmetric vortex shedding triggering important 3D motions is considered. The water impact loads are based on strip theory and empirical slamming coefficients together with added mass and buoyancy loads. The theory is validated by comparing numerical analyses with experimental drop tests of pipes performed by Aanesland (1987). Error analyses of the theoretical method are performed and compared with tests to explore the sensitivity to input variations.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.title3D motion dynamics of axisymmetric bodies falling through waternb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionacceptedVersionnb_NO
dc.source.pagenumber442-456nb_NO
dc.source.volume169nb_NO
dc.source.journalOcean Engineeringnb_NO
dc.identifier.doi10.1016/j.oceaneng.2018.08.033
dc.identifier.cristin1631123
dc.relation.projectNorges forskningsråd: 223254nb_NO
dc.description.localcode© 2018. This is the authors’ accepted and refereed manuscript to the article. Locked until 1.10.2020 due to copyright restrictions. 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
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal