BEM and penalty FEM models for viscous incompressible fluids

dc.contributor.author	Κόκκινος, Τριαντάφυλλος-Φίλης	el
dc.contributor.author	Reddy, Junuthula N.	en
dc.date.accessioned	2015-06-06T18:22:41Z
dc.date.available	2015-06-06T18:22:41Z
dc.date.issued	2015-06-06
dc.identifier.uri	http://hdl.handle.net/11400/15357
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.sciencedirect.com/science/article/pii/0045794995000137#	el
dc.subject	Boundary value problems
dc.subject	Boundary element methods
dc.subject	Finite element method
dc.subject	Προβλήματα συνοριακών τιμών
dc.subject	Οριακές μεθόδους στοιχείων
dc.subject	Μέθοδο των πεπερασμένων στοιχείων
dc.title	BEM and penalty FEM models for viscous incompressible fluids	en
heal.type	journalArticle
heal.classification	Engineering
heal.classification	Computer science
heal.classification	Μηχανική
heal.classification	Πληροφορική
heal.classificationURI	http://skos.um.es/unescothes/C01363
heal.classificationURI	http://skos.um.es/unescothes/C00750
heal.classificationURI	N/A-Μηχανική
heal.classificationURI	N/A-Πληροφορική
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh85016102
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh88001604
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh85048349
heal.identifier.secondary	ISSN: 00457949
heal.identifier.secondary	DOI: 10.1016/0045-7949(95)00013-7
heal.language	en
heal.access	campus
heal.recordProvider	Τ.Ε.Ι. Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Πολιτικών Μηχανικών Τ.Ε και Μηχανικών Τοπογραφίας & Γεωπληροφορικής Τ.Ε.	el
heal.publicationDate	1995-09-03
heal.abstract	In the present paper, the analogy between the Navier's equations of elasticity for compressible solids and the penalty function formulation of viscous incompressible fluids is utilized in a boundary element model to analyze problems of viscous incompressible flows in two dimensions. The equations of the penalty formulation of fluid flow are the same as those of the compressible elasticity with the Lamé's constant λ equal to the penalty parameter, γ. The incompressibility condition is realized by setting the Poisson's ratio, ν, to 0.5. The fundamental solution of incompressible elasticity can be used, in conjunction with the boundary element method (BEM), to study the problem of viscous incompressible fluids. The resulting boundary element model does not suffer from numerical difficulties that the penalty finite element model is known to experience. Numerical results are presented to compare the penalty FEM and BEM solutions for a number of fluid problems. It is found that the boundary element model gives accurate solutions and it does not suffer from numerical difficulties.	en
heal.journalName	Computers and Structures	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true