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dc.contributor.authorMusiedlak, P-H
dc.contributor.authorRansley, E
dc.contributor.authorBrown, Scott Andrew
dc.contributor.authorChild, B
dc.contributor.authorHann, Martyn
dc.contributor.authorIglesias, Gregorio
dc.contributor.authorGreaves, Deborah
dc.date.accessioned2019-04-04T09:47:15Z
dc.date.available2019-04-04T09:47:15Z
dc.date.issued2018
dc.identifier.isbn9788494731167
dc.identifier.urihttp://hdl.handle.net/10026.1/13624
dc.description.abstract

This paper details the reduction of an OpenFOAM CFD WSI simulation to its major event, by starting it at an advance time: a new procedure named hot-start, which is a first step towards a future coupling development. The investigations concern the fluid flow and a structure motion hot-start, taken separately, and are restricted to numerical comparison. Four design waves based upon the NewWave theory are simulated with increasing starting times - where the wave field is initialized as the sum of the linear components of the considered wave - and compare to conventional ones - which are initialized with still water. The structure motion hot-start is assessed using a heave decay test: a conventional heave decay simulation is compared against several ones where the motion, velocity and acceleration of the structure are assigned for several time-steps. An initial mesh-deformation library is specifically created to assign the structure at the hot-start position by incrementally deforming the mesh towards the right structure position. Independent to the non-linearity of the case, a start 4 s prior to the main event is found to be enough to accurately represent the wave field. The motion of the structure was found to require at least 5 time-steps in order to converge to the reference one. Those results aim to be usable for other CFD WSI applications.

dc.format.extent3224-3235
dc.language.isoen
dc.titleStarting a wave structure interaction CFD simulation from an advance time: Hot-start
dc.typeconference
dc.typeinproceedings
plymouth.date-start2018-06-11
plymouth.date-finish2018-06-15
plymouth.conference-nameProceedings of the 6th European Conference on Computational Mechanics (ECCM 6)/7th European Conference on Computational Fluid Dynamics (ECFD 7)
plymouth.publication-statusPublished
plymouth.journalProceedings of the 6th European Conference on Computational Mechanics: Solids, Structures and Coupled Problems, ECCM 2018 and 7th European Conference on Computational Fluid Dynamics, ECFD 2018
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering/School of Engineering, Computing and Mathematics
plymouth.organisational-group/Plymouth/PRIMaRE Publications
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA12 Engineering
plymouth.organisational-group/Plymouth/Research Groups
plymouth.organisational-group/Plymouth/Research Groups/Marine Institute
plymouth.organisational-group/Plymouth/Users by role
plymouth.organisational-group/Plymouth/Users by role/Academics
plymouth.organisational-group/Plymouth/Users by role/Researchers in ResearchFish submission
dc.publisher.placeGlasgow, UK
dc.rights.embargoperiodNot known
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.typeConference Paper/Proceeding/Abstract


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