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OPTIMIZATION STRATEGIES IN UNSTRUCTURED MESH GENERATION

1996; Wiley; Volume: 39; Issue: 12 Linguagem: Inglês

10.1002/(sici)1097-0207(19960630)39

1097-0207

Pablo Zavattieri, Enzo A. Dari, Gustavo C. Buscaglia,

Advanced Numerical Methods in Computational Mathematics

International Journal for Numerical Methods in EngineeringVolume 39, Issue 12 p. 2055-2071 Research Article OPTIMIZATION STRATEGIES IN UNSTRUCTURED MESH GENERATION P. D. ZAVATTIERI, Corresponding Author P. D. ZAVATTIERI Instituto Balseiro, Universidad Nac. de Cuyo and Comisión Nacional de Energía Atómica, ArgentinaInstituto Balseiro, Universidad Nac. de Cuyo and Comisión Nacional de Energía Atómica, ArgentinaSearch for more papers by this authorE. A. DARI, E. A. DARI Instituto Balseiro, Universidad Nac. de Cuyo and Centro Atómico Bariloche, 8400 Bariloche, Comisión Nacional de Energía Atómica, ArgentinaSearch for more papers by this authorG. C. BUSCAGLIA, G. C. BUSCAGLIA Instituto Balseiro, Universidad Nac. de Cuyo and Centro Atómico Bariloche, 8400 Bariloche, Comisión Nacional de Energía Atómica, ArgentinaSearch for more papers by this author P. D. ZAVATTIERI, Corresponding Author P. D. ZAVATTIERI Instituto Balseiro, Universidad Nac. de Cuyo and Comisión Nacional de Energía Atómica, ArgentinaInstituto Balseiro, Universidad Nac. de Cuyo and Comisión Nacional de Energía Atómica, ArgentinaSearch for more papers by this authorE. A. DARI, E. A. DARI Instituto Balseiro, Universidad Nac. de Cuyo and Centro Atómico Bariloche, 8400 Bariloche, Comisión Nacional de Energía Atómica, ArgentinaSearch for more papers by this authorG. C. BUSCAGLIA, G. C. BUSCAGLIA Instituto Balseiro, Universidad Nac. de Cuyo and Centro Atómico Bariloche, 8400 Bariloche, Comisión Nacional de Energía Atómica, ArgentinaSearch for more papers by this author First published: 30 June 1996 https://doi.org/10.1002/(SICI)1097-0207(19960630)39:12 3.0.CO;2-2Citations: 51AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Abstract We propose a new optimization strategy for unstructured meshes that, when coupled with existing automatic generators, produces meshes of high quality for arbitrary domains in 3-D. Our optimizer is based upon a non-differentiable definition of the quality of the mesh which is natural for finite element or finite volume users: the quality of the worst element in the mesh. The dimension of the optimization space is made tractable by restricting, at each iteration, to a suitable neighbourhood of the worst element. Both geometrical (node repositioning) and topological (reconnection) operations are performed. It turns out that the repositioning method is advantageous with respect to both the usual node-by-node techniques and the more recent differentiable optimization methods. Several examples are included that illustrate the efficiency of the optimizer. Citing Literature Volume39, Issue1230 June 1996Pages 2055-2071 RelatedInformation