An isogeometric BEM for exterior potential-flow problems in the plane

dc.contributor.author	Πολίτης, Κωνσταντίνος	el
dc.contributor.author	Γκίνης, Αλέξανδρος - Αλβέρτος	el
dc.contributor.author	Κακλής, Παναγιώτης Δ.	el
dc.contributor.author	Μπελιμπασάκης, Κωνσταντίνος Α.	el
dc.contributor.author	Feurer, Christian	en
dc.date.accessioned	2015-06-02T19:34:32Z
dc.date.available	2015-06-02T19:34:32Z
dc.date.issued	2015-06-02
dc.identifier.uri	http://hdl.handle.net/11400/14895
dc.rights	Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/us/	*
dc.source	http://www.scopus.com/record/display.url?eid=2-s2.0-70350639436&origin=resultslist&sort=plf-f&src=s&sid=7F04C384A08FCCC9964A7BA0BE6ED47D.ZmAySxCHIBxxTXbnsoe5w%3a20&sot=autdocs&sdt=autdocs&sl=17&s=AU-ID%287005376667%29&relpos=11&relpos=11&citeCnt=10&searchTerm=	en
dc.subject	Αναλυτικές λύσεις
dc.subject	Μέθοδος συνεγκατάστασης
dc.subject	ισογεωμετρική ανάλυση
dc.subject	Ποσοστά σύγκλισης
dc.subject	Προβλήματα ροής
dc.subject	Analytical solutions
dc.subject	Collocation method
dc.subject	Isogeometric analysis
dc.subject	Convergence rates
dc.subject	Flow problems
dc.title	An isogeometric BEM for exterior potential-flow problems in the plane	en
heal.type	conferenceItem
heal.classification	Ναυτική τέχνη και επιστήμη
heal.classification	Ναυτική μηχανολογία
heal.classification	Naval art and science
heal.classification	Marine engineering
heal.classificationURI	N/A-Ναυτική τέχνη και επιστήμη
heal.classificationURI	N/A-Ναυτική μηχανολογία
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85090357
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85081157
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh2009005474
heal.identifier.secondary	DOI: 10.1145/1629255.1629302
heal.language	en
heal.access	campus
heal.recordProvider	Τεχνολογικό Εκπαιδευτικό Ίδρυμα Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Ναυπηγών Μηχανικών Τ.Ε.	el
heal.publicationDate	2009-10-05
heal.bibliographicCitation	Politis, C.G., Ginnis, A.I., Kaklis, P.D., Belibassakis, K.A. and Feurer, C. (2009) An isogeometric BEM for exterior potential-flow problems in the plane. Proceedings - SPM 2009: SIAM/ACM Joint Conference on Geometric and Physical Modeling. SPM 2009: SIAM/ACM Joint Conference on Geometric and Physical Modeling. 1629302, pp.349-354. San Francisco, CA; United States: ACM	en
heal.abstract	In this paper, the isogeometric concept introduced by Hughes, in the context of Finite Element Method, is applied to Boundary Element Method (BEM), for solving an exterior planar Neumann problem. The developed isogeometric-BEM concept is based on NURBS, for representing the exact body geometry and employs the same basis for representing the potential and/or the density of the single layer. In order to examine the accuracy of the scheme, numerical results for the case of a circle and a free-form body are presented and compared against analytical solutions. This enables performing a numerical error analysis, verifying the superior convergence rate of the isogeometric BEM versus low-order BEM. When starting from the initial NURBS representation of the geometry and then using knot insertion for refinement of the NURBS basis, the achieved rate of convergence is O(DoF -4). This rate may be further improved by using a degree-elevated initial NURBS representation of the geometry (kh-refinement).	en
heal.sponsor	SIAM Activity Group on Geometric Design	en
heal.publisher	ACM	en
heal.fullTextAvailability	true
heal.conferenceName	SIAM/ACM Joint Conference on Geometric and Physical Modeling, SPM 2009	en
heal.conferenceItemType	full paper