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Implementation and evaluation of automated tetrahedral-prismatic mesh generation software
KTH, Skolan för teknikvetenskap (SCI), Farkost och flyg, Flygdynamik. (Flight Dynamics)ORCID-id: 0000-0002-3199-8534
FS Dynamics Sweden AB.
2015 (engelsk)Inngår i: Computer-Aided Design, ISSN 0010-4485, E-ISSN 1879-2685Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

An open-source implementation of an efficient mesh generation procedure for hybrid prismatic-tetrahedral meshes intended for use in Reynolds-averaged Navier-Stokes solutions is presented. The method employed combines the established, and very fast, Delaunay-based tetrahedral mesh generator TetGen with a novel technique for the creation of a prismatic layer, where constrained global optimization of the envelope is employed. Once a well-shaped envelope is thus obtained, a semi-structured layer of pentahedral elements is extruded between wall and envelope surface. Satisfactory mesh quality is demonstrated by comparing solutions obtained using the new meshes with reference data computed on high-quality advancing-front grids. Mesh generation time is shown to be substantially smaller than with many other methods. Overall, the presented implementation is deemed a valuable tool for cases where many meshes need to be generated for routine analyses and turnaround time is critical. 

sted, utgiver, år, opplag, sider
Elsevier, 2015.
Emneord [en]
Automatic Mesh Generation, Boundary Layer, Tetrahedral-Prismatic Mesh
HSV kategori
Forskningsprogram
Flyg- och rymdteknik
Identifikatorer
URN: urn:nbn:se:kth:diva-171086DOI: 10.1016/j.cad.2015.06.010ISI: 000368951500010Scopus ID: 2-s2.0-84954364489OAI: oai:DiVA.org:kth-171086DiVA, id: diva2:842286
Merknad

QC 20150811

Tilgjengelig fra: 2015-07-17 Laget: 2015-07-17 Sist oppdatert: 2017-12-04bibliografisk kontrollert

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