Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.contributor.authorFortunato, A. B.pt_BR
dc.contributor.authorBruneau, N.pt_BR
dc.contributor.authorAzevedo, A.pt_BR
dc.contributor.authorAraújo, M. A. V. C.pt_BR
dc.contributor.authorOliveira, A.pt_BR
dc.description.abstractThe generation of unstructured triangular grids for coastal applications requires extensive manual tunning, in order to improve the stability, accuracy and efficiency of the model simulations. As current grids reach 105-106 nodes, this manual tunning is no longer feasible. This paper presents a new post-processor that aims at optimizing the local distribution of nodes and elements by adding and deleting nodes and by changing the connections between nodes. The algorithms target a smooth transition between elements sizes by making the number of connections of each internal node as close to 6 as possible. An application of the post-processor to various grids shows that the grid roughness is reduced by 10-30%, while decreasing marginally the number of nodes and maintaining the global nodal distribution. To illustrate the benefits of the post-processor, a grid with 130.000 nodes of the maritime zone under Portuguese jurisdiction is used to simulate tides with a good accuracy (root mean square errors below 10 cm) and without numerical oscillations. The model results provide an extensive database of tidal elevations that can feed boundary conditions to local estuarine models.pt_BR
dc.subjectTidal modelpt_BR
dc.subjectPortuguese shelfpt_BR
dc.subjectGrid generationpt_BR
dc.titleAutomatic improvement of unstructured grids for coastal simulationspt_BR
dc.description.pages1028 - 1032pt_BR
dc.description.volumeSI 64pt_BR
dc.description.magazineJournal of Coastal Research, ICS2011 (Proceedings)pt_BR
Appears in Collections:DHA/NEC - Comunicações a congressos e artigos de revista

Files in This Item:
There are no files associated with this item.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.