Solution of flow problems using unstructured grids on distributed memory platforms

dc.contributor.author	Κουμπογιάννης, Δημήτριος Γ.	el
dc.contributor.author	Πουσουλίδης, Λ.Χ.	el
dc.contributor.author	Ρόβας, Δημήτριος Β.	el
dc.contributor.author	Γιαννάκογλου, Κυριάκος Χ.	el
dc.date.accessioned	2015-06-07T21:22:41Z
dc.date.available	2015-06-07T21:22:41Z
dc.date.issued	2015-06-08
dc.identifier.uri	http://hdl.handle.net/11400/15565
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?origin=recordpage&eid=2-s2.0-0032527540&citeCnt=19&noHighlight=false&sort=plf-f&src=s&sid=62A9054A815E25F2D3896574D4CE2724.fM4vPBipdL1BpirDq5Cw%3a10650&sot=autdocs&sdt=autdocs&sl=17&s=AU-ID%286507485349%29&relpos=8	en
dc.subject	Αλγόριθμοι
dc.subject	Εξοπλισμός για την αποθήκευση δεδομένων
dc.subject	Μέθοδος των πεπερασμένων στοιχείων
dc.subject	Μέθοδος των πεπερασμένων όγκων
dc.subject	Τυρβώδης ροή
dc.subject	Algorithms
dc.subject	Data storage equipment
dc.subject	Finite element method
dc.subject	Finite volume method
dc.subject	Viscous flow
dc.title	Solution of flow problems using unstructured grids on distributed memory platforms	en
heal.type	journalArticle
heal.classification	Μαθηματικά
heal.classification	Μηχανική
heal.classification	Mathematics
heal.classification	Mechanics
heal.classificationURI	N/A-Μαθηματικά
heal.classificationURI	N/A-Μηχανική
heal.classificationURI	http://skos.um.es/unescothes/C02437
heal.classificationURI	http://skos.um.es/unescothes/C02449
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh85048349
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh95001595
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh85143860
heal.identifier.secondary	DOI: 10.1016/S0045-7825(97)00285-5
heal.language	en
heal.access	campus
heal.recordProvider	Τεχνολογικό Εκπαιδευτικό Ίδρυμα Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Μηχανικών Ενεργειακής Τεχνολογίας Τ.Ε.	el
heal.publicationDate	1998-07-15
heal.bibliographicCitation	Koubogiannis, D.G., Poussoulidis, L.C., Rovas, D.V. and Giannakoglou, K.C. (1998) Solution of flow problems using unstructured grids on distributed memory platforms. Computer Methods in Applied Mechanics and Engineering. [Online] 160 (1-2), pp.89-100. Available from: http://www.scopus.com [Accessed 07/06/2015]	en
heal.abstract	The numerical solution of the steady two-dimensional Euler and Navier-Stokes equations using unstructured meshes with triangular elements is considered. A finite volume vertex-centered scheme is used. The Roe upwind scheme is implemented for the inviscid fluxes calculation, coupled with a monotonic extrapolation scheme (MUSCL) for higher-order accuracy. Viscous fluxes are calculated via a finite-element consistent scheme. The discretized equations are solved by means of a point-Jacobi procedure and the algorithm is ported on a distributed memory computer. The recursive spectral bisection algorithm provides patched or overlapping subdomains which are assigned to different processors. Overlapping or non-overlapping subdomain solutions are compared in terms of (a) computer cost for the partitioning, (b) efficiency of the parallel processing of the flow equations and (c) susceptibility of artifices for improving speed-up. The numerical solution of the steady two-dimensional Euler and Navier-Stokes equations using unstructured meshes with triangular elements is considered. A finite volume vertex-centered scheme is used. The Roe upwind scheme is implemented for the inviscid fluxes calculation, coupled with a monotonic extrapolation scheme (MUSCL) for higher-order accuracy. Viscous fluxes are calculated via a finite-element consistent scheme. The discretized equations are solved by means of a point-Jacobi procedure and the algorithm is ported on a distributed memory computer. The recursive spectral bisection algorithm provides patched or overlapping subdomains which are assigned to different processors. Overlapping or non-overlapping subdomain solutions are compared in terms of (a) computer cost for the partitioning, (b) efficiency of the parallel processing of the flow equations and (c) susceptibility of artifices for improving speed-up.	en
heal.publisher	Elsevier	en
heal.journalName	Computer Methods in Applied Mechanics and Engineering	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true