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dc.contributor.authorOmmani, Babak
dc.contributor.authorFaltinsen, Odd Magnus
dc.date.accessioned2017-12-27T08:42:13Z
dc.date.available2017-12-27T08:42:13Z
dc.date.created2014-10-20T16:00:25Z
dc.date.issued2014-06
dc.identifier.citationASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering - Volume 8B: Ocean Engineeringnb_NO
dc.identifier.isbn978-0-7918-4550-9
dc.identifier.urihttp://hdl.handle.net/11250/2473755
dc.description.abstractIn linear Rankine panel method, the discrete linear dispersion relation is solved on a discrete free-surface to capture the free-surface waves generated due to wave-body interactions. Discretization introduces numerical damping and dispersion, which depend on the discretization order and the chosen methods for differentiation in time and space. The numerical properties of a linear Rankine panel method, based on a direct boundary integral formulation, for capturing two and three dimensional free-surface waves were studied. Different discretization orders and differentiation methods were considered, focusing on the linear distribution and finite difference schemes. The possible sources for numerical instabilities were addressed. A series of cases with and without forward speed was selected, and numerical investigations are presented. For the waves in three dimensions, the influence of the panels’ aspect ratio and the waves’ angle were considered. It has been shown that using the cancellation effects of different differentiation schemes the accuracy of the numerical method could be improved.nb_NO
dc.language.isoengnb_NO
dc.relation.ispartofASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering, Volume 8A: Ocean Engineering
dc.relation.ispartofseriesASME Digital colletion;OMAE2014-23152,
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/deed.no*
dc.titleWaves' numerical dispersion and damping due to discrete dispersion relationnb_NO
dc.typeChapternb_NO
dc.description.versionacceptedVersionnb_NO
dc.rights.holderCopyright © 2014 by ASMEnb_NO
dc.identifier.doi10.1115/OMAE2014-23152
dc.identifier.cristin1165407
dc.relation.projectNorges forskningsråd: 223254nb_NO
cristin.unitcode7566,9,0,0
cristin.unitnameHydrodynamikk
cristin.ispublishedtrue
cristin.fulltextoriginal
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