dc.contributor.author | Reiersen, Lars Mikkel | |
dc.contributor.author | Kristiansen, Trygve | |
dc.contributor.author | Ommani, Babak | |
dc.contributor.author | Fredriksen, Arnt Gunvald | |
dc.date.accessioned | 2021-03-08T12:50:42Z | |
dc.date.available | 2021-03-08T12:50:42Z | |
dc.date.created | 2021-01-20T21:59:58Z | |
dc.date.issued | 2021 | |
dc.identifier.citation | Applied Ocean Research. 2021, 108 . | en_US |
dc.identifier.issn | 0141-1187 | |
dc.identifier.uri | https://hdl.handle.net/11250/2732183 | |
dc.description.abstract | Moonpools as a device for reducing pitch motion is investigated experimentally, numerically and by an approximate theory. A two-dimensional study is carried out of a rectangular body with two moonpools. Forced heave and pitch motion, as well as freely floating body in regular waves are studied. The body geometry is varied; two drafts and five different moonpool inlet configurations are considered; rounded and squared inlets, as well as vertical plates (appendages) extending below the inlet with three different depths. The outer corners of the body are square. There is a resonance as well as cancellation period in both pitch and heave, where the cancellation is the desired effect. By cancellation period we refer to a narrow period range where the pitch motion is nearly cancelled, due to the pressures induced by the moonpool piston-mode resonance. Our investigation reveals that the cases with rounded and square moonpool inlet geometries are most efficient in cancelling the pitch motions. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Elsevier | en_US |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.title | Investigation of moonpools as pitch motion reducing device | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | publishedVersion | en_US |
dc.source.pagenumber | 15 | en_US |
dc.source.volume | 108 | en_US |
dc.source.journal | Applied Ocean Research | en_US |
dc.identifier.doi | https://doi.org/10.1016/j.apor.2020.102477 | |
dc.identifier.cristin | 1876102 | |
cristin.ispublished | true | |
cristin.fulltext | postprint | |
cristin.qualitycode | 1 | |