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 hal.structure.identifier
DELACROIX, Sylvain
300022 Institut Français de Recherche pour l'Exploitation de la Mer [IFREMER]
dc.contributor.author
 hal.structure.identifier
GERMAIN, Gregory
300022 Institut Français de Recherche pour l'Exploitation de la Mer [IFREMER]
dc.contributor.author
 hal.structure.identifier
GAURIER, Benoit
300022 Institut Français de Recherche pour l'Exploitation de la Mer [IFREMER]
dc.contributor.author
 hal.structure.identifier
BILLARD, Jean-Yves
13094 Institut de Recherche de l'Ecole Navale [IRENAV]
dc.date.accessioned2016
dc.date.available2017
dc.date.issued2016
dc.date.submitted2016
dc.identifier.issn0029-8018
dc.identifier.urihttp://hdl.handle.net/10985/11318
dc.description.abstractBubble sweep-down is a significant issue for the oceanographic vessels, which affect the acoustic sur- veys. Experimental trials, carried out in the Ifremerwave and current circulating tank on a 1/30 model of the Pourquoi pas?, are presented. The results demonstrate that this kind of experimental facility is well suited to study the phenomenon of bubble sweep-down encountered around the bow of a ship under specific conditions. From these results, two kinds of bubble clouds formation have been observed and analysed: bubble clouds generated by vortex shedding and breaking waves. The vortex shedding bubble clouds appear randomly in all the configurations tested, even without waves or motions. This phe- nomenon is due to the interaction between the turbulent flow and the specific bow shape of the Pourquoi pas?. On the other hand, the breaking wave clouds appear in the presence of relative motions between the free surface and the bow ship and more significantly under wave sollicitations. A complementary paper presents a parametric study carried out to quantify the influence of the test conditions.
dc.description.sponsorshipThe authors gratefully acknowledge the DGA (the French Government Agency for Defense) and Ifremer for the financial support of co-financed PhD theses. We also would like to thank Thomas Bacchetti and Jean-Valery Facq for their assistance in the design and set-up of these experiments.
dc.language.isoen
dc.publisherElsevier
dc.rightsPost-print
dc.subjectBow waves
dc.subjectBubble sweep-down
dc.subjectExperimental trials
dc.subjectShip motions
dc.titleExperimental study of bubble sweep-down in wave and current circulating tank: Part I—Experimental set-up and observed phenomena
ensam.embargo.terms2018-07-01
dc.identifier.doi10.1016/j.oceaneng.2016.05.003
dc.typdocArticle dans une revue avec comité de lecture
dc.localisationCentre de Paris
dc.subject.halSciences de l'ingénieur: Mécanique
dc.subject.halSciences de l'ingénieur: Mécanique: Mécanique des fluides
ensam.audienceNon spécifiée
ensam.page78-87
ensam.journalOcean Engineering
ensam.volume120
ensam.peerReviewingOui
hal.identifierhal-01392613
hal.version1
hal.statusaccept


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