Please use this identifier to cite or link to this item: https://doi.org/10.15480/882.1563
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dc.contributor.authorSöding, Heinrich-
dc.date.accessioned2018-03-02T10:08:42Z-
dc.date.available2018-03-02T10:08:42Z-
dc.date.issued2014-
dc.identifier.citationProceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment 1 (230): 22-32 (2014)de_DE
dc.identifier.issn2041-3084de_DE
dc.identifier.urihttp://tubdok.tub.tuhh.de/handle/11420/1566-
dc.description.abstractPerturbation methods up to first order with respect to motion or wave amplitude are common in seakeeping predictions. For higher than first order, lengthy theoretical analyses are required. They result in complicated formulae requiring high programming effort, and often the well-established numerical methods for first-order quantities fail when applied to second-order flow quantities. Both the derivation of the required expressions and their programming are simplified by using mathematical entities called perturbators. The concept of perturbators is described, and their application is demonstrated, for a two-dimensional test problem: A cylinder with horizontal axis partly immersed into an ideal fluid. The cylinder performs sinusoidal heave, sway, and roll motions. Stationary and double-frequency second-order forces are determined. For a heaving semicircle, vertical forces are determined numerically and compared to published results.en
dc.language.isoende_DE
dc.publisherSage Publ.de_DE
dc.relation.ispartofProceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environmentde_DE
dc.rightsinfo:eu-repo/semantics/openAccess-
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectpotential flowde_DE
dc.subjectfree surfacede_DE
dc.subjectoscillatory motionde_DE
dc.subjectheavede_DE
dc.subjectswayde_DE
dc.subjectflow forcede_DE
dc.subject.ddc620: Ingenieurwissenschaftende_DE
dc.titleA method to simplify perturbation analyses of periodical flowsde_DE
dc.typeArticlede_DE
dc.identifier.urnurn:nbn:de:gbv:830-88219510-
dc.identifier.doi10.15480/882.1563-
dc.type.diniarticle-
dc.subject.ddccode620-
dcterms.DCMITypeText-
tuhh.identifier.urnurn:nbn:de:gbv:830-88219510de_DE
tuhh.oai.showtrue-
dc.identifier.hdl11420/1566-
tuhh.abstract.englishPerturbation methods up to first order with respect to motion or wave amplitude are common in seakeeping predictions. For higher than first order, lengthy theoretical analyses are required. They result in complicated formulae requiring high programming effort, and often the well-established numerical methods for first-order quantities fail when applied to second-order flow quantities. Both the derivation of the required expressions and their programming are simplified by using mathematical entities called perturbators. The concept of perturbators is described, and their application is demonstrated, for a two-dimensional test problem: A cylinder with horizontal axis partly immersed into an ideal fluid. The cylinder performs sinusoidal heave, sway, and roll motions. Stationary and double-frequency second-order forces are determined. For a heaving semicircle, vertical forces are determined numerically and compared to published results.de_DE
tuhh.publisher.doi10.1177/1475090214529425-
tuhh.publication.instituteFluiddynamik und Schiffstheorie M-8de_DE
tuhh.identifier.doi10.15480/882.1563-
tuhh.type.opus(wissenschaftlicher) Artikel-
tuhh.institute.germanFluiddynamik und Schiffstheorie M-8de
tuhh.institute.englishFluiddynamik und Schiffstheorie M-8de_DE
tuhh.gvk.hasppnfalse-
tuhh.hasurnfalse-
openaire.rightsinfo:eu-repo/semantics/openAccessde_DE
dc.type.driverarticle-
dc.type.casraiJournal Article-
tuhh.container.issue1de_DE
tuhh.container.volume230de_DE
tuhh.container.startpage22de_DE
tuhh.container.endpage32de_DE
dc.rights.nationallicensetruede_DE
dc.rights.nltextDieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich. This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.de_DE
dc.identifier.scopus2-s2.0-84953870754-
item.mappedtypeArticle-
item.fulltextWith Fulltext-
item.creatorGNDSöding, Heinrich-
item.openairecristypehttp://purl.org/coar/resource_type/c_6501-
item.grantfulltextopen-
item.languageiso639-1en-
item.cerifentitytypePublications-
item.openairetypeArticle-
item.creatorOrcidSöding, Heinrich-
crisitem.author.deptFluiddynamik und Schiffstheorie M-8-
crisitem.author.orcid0000-0002-1822-0859-
crisitem.author.parentorgStudiendekanat Maschinenbau-
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