منابع مشابه
Localized Quadrilateral Coarsening
In this paper we introduce a coarsening algorithm for quadrilateral meshes that generates quality, quad-only connectivity during level-of-coarsening creation. A novel aspect of this work is development and implementation of a localized adaptation of the polychord collapse operator to better control and preserve important surface components. We describe a novel weighting scheme for automatic del...
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A uniform finite element mesh rarely provides the best discretization of a domain to accommodate a solution with both optimal efficiency and minimal error. Mesh adaptation can approach a more optimal solution by accommodating regions of the mesh with higher or lower element density. Extensive attention has been given to mesh adaptation in both computational mechanics and computer graphics to pr...
متن کاملAdaptive Mesh Coarsening for Quadrilateral and Hexahedral Meshes
Mesh adaptation methods can improve the efficiency and accuracy of solutions to computational modeling problems. In many applications involving quadrilateral and hexahedral meshes, local modifications which maintain the original element type are desired. For triangle and tetrahedral meshes, effective refinement and coarsening methods that satisfy these criteria are available. Refinement methods...
متن کاملAutomatic All Quadrilateral Mesh Adaption through Refinement and Coarsening
This work presents a new approach to conformal all-quadrilateral mesh adaptation. Most current quadrilateral adaptivity techniques rely on mesh refinement or a complete remesh of the domain. In contrast, we introduce a new method that incorporates both conformal refinement and coarsening strategies on an existing mesh of any density or configuration. Given a sizing function, this method modifie...
متن کاملUsing Edge Valence Prediction to Drive Localized All-Hex Coarsening
In this work, we propose using edge valence as a quality predictor when used as a driver for adapting all hexahedral meshes. Edge valence, for hexahedra, is defined as the number of faces attached to an edge. It has shown to be a more reliable quality predictor than node valence for hexahedral meshes. This work presents a general algorithm for predicting edge valence when used with column colla...
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ژورنال
عنوان ژورنال: Computer Graphics Forum
سال: 2009
ISSN: 0167-7055,1467-8659
DOI: 10.1111/j.1467-8659.2009.01520.x