{"refrec":{"BRefID":211401,"RR":"<b>Bernard, P.E.; Remacle, J.F.; Legat, V.</b> (2009). Modal analysis on unstructured meshes of the dispersion properties of the <i>P</i><sub>1</sub><sup>NC</sup>-<i>P</i><sub>1</sub> pair. <i>Ocean Modelling 28(1-3)</i>: 2-11. <a href=\"http://dx.doi.org/10.1016/j.ocemod.2008.03.005\" target=\"_blank\">dx.doi.org/10.1016/j.ocemod.2008.03.005</a>","BEntID":203323,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Ocean Modelling 28(1-3)</i>: 2-11. <a href=\"https://dx.doi.org/10.1016/j.ocemod.2008.03.005\" target=\"_blank\">https://dx.doi.org/10.1016/j.ocemod.2008.03.005</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Bernard, P.E.; Remacle, J.F.; Legat, V.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Bernard, P.E. <i>et al.</i>","Englishabstract":"It is mandatory for an ocean model to represent accurately the different kinds of waves since they play a critical role in ocean dynamics. Quantifying the dispersion or dissipation errors of a given numerical scheme and comparing numerical methods is not an easy task especially when using unstructured grids. In this paper we use a general method fully independent of the numerical scheme and of the grid to analyse dispersion and dissipation errors. In particular we apply this method to the study of the <i>P</i><sub>1</sub><sup>NC</sup> - <i>P</i><sub>1</sub> finite element pair applied to the shallow water equations. The influence of the grid is observed by comparing the convergence rates of the dispersion errors on Poincare, Kelvin and Rossby waves. We observe a significative reduction of the convergence rate on unstructured meshes compared to structured grids for the <i>P</i><sub>1</sub><sup>Nc</sup> - <i>P</i><sub>1</sub> pair, while this rate remains unchanged when using other approaches as the <i>P</i><sub>1</sub> - <i>P</i><sub>1</sub> pair without stabilization or the discontinuous Galerkin method.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Modal analysis on unstructured meshes of the dispersion properties of the <i>P</i><sub>1</sub><sup>NC</sup>-<i>P</i><sub>1</sub> pair","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Linear non-conforming finite element; Unstructured meshes; Dispersion","OtherDescriptors":null,"Notes":null,"AnaPub":2009,"MonPub":null,"DateUpdate":"2015-11-05","DateCreate":"2011-12-22","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000265400800002","VABBcode":null,"OpenAcc":0,"DOI":"10.1016/j.ocemod.2008.03.005"},"refs":null,"anarec":{"AnaID":211401,"PubliDate":2009,"Pagination":"2-11","XtraPublOfAnaID":null,"ISBN":null,"Volume":"28","Issue":"1-3","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":45570,"SerRR":"Ocean Modelling. 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