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dc.contributor.authorRavinthrakumar, Senthuran
dc.contributor.authorKristiansen, Trygve
dc.contributor.authorMolin, Bernard Jean Marie
dc.contributor.authorOmmani, Babak
dc.identifier.citationApplied Ocean Research. 2020, 96 1-15.en_US
dc.description.abstractHydrodynamic coupling between the ship and moonpool responses is investigated. Dedicated experiments are carried out in the Ocean Basin at Sintef Ocean. Three different moonpool sizes are studied, where the moonpool length is 1/20, 1/10 and 1/2 of the ship length. The two former are square moonpools, while the latter is a rectangular moonpool with a width 1/2 of the ship’s beam. Numerical simulations are carried out using WAMIT. The coupling between the ship and moonpool is seen to be highly dependent on the volume of the moonpool relative to the submerged ship volume. WAMIT greatly over-predicts the moonpool responses in the proximity of resonance, which indicates that wave radiation damping is small, and that damping due to flow separation at sharp edges at the moonpool entrance is dominant. Two main nonlinear effects are observed; Swirling-type sloshing and secondary resonance. These nonlinear effects are excited in a range of wave periods where it is expected that a realistic sea environment will contain significant wave energy. This is most prominent in the largest moonpool. The piston mode shape in freely floating conditions is signficantly different relative to the one in forced heave.en_US
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internasjonal*
dc.titleCoupled vessel and moonpool responses in regular and irregular wavesen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.source.journalApplied Ocean Researchen_US
dc.description.localcodeThis article is available under the Creative Commons CC-BY-NC-ND license and permits non-commercial use of the work as published, without adaptation or alteration provided the work is fully attributed.en_US

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Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal
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