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Title: Automatic hexahedral mesh generation using a new grid-based method with geometry and mesh transformation
Authors: Su, Y.
Lee, K.H. 
Kumar, A.S. 
Keywords: Field morphing
Fuzzy logic
Grid-based mesh generation
Hexahedral mesh generation
Laplacian-isoparametric smoothing
Recognition model
Tessellated model
Issue Date: 1-Oct-2005
Citation: Su, Y., Lee, K.H., Kumar, A.S. (2005-10-01). Automatic hexahedral mesh generation using a new grid-based method with geometry and mesh transformation. Computer Methods in Applied Mechanics and Engineering 194 (39-41) : 4071-4096. ScholarBank@NUS Repository.
Abstract: A geometry and mesh transformation approach is proposed to overcome the traditional problem of poorly shaped elements at the boundary using the grid-based method of mesh generation. This is achieved by transforming the original geometric model to a topologically similar recognition model which conforms fully to the Cartesian directions. Such a recognition model is constructed by tessellating the original model and then employing a fuzzy logic method to determine the normal directions of the faces. A three-dimensional field morphing algorithm is used to position the features of the recognition model. Such a recognition model is then meshed with hexahedral elements without any degeneracy using the new grid-based algorithm. The mesh of the recognition model is mapped back to the original geometric model by employing a transformation based on the Laplacian-isoparametric equation. © 2004 Elsevier B.V. All rights reserved.
Source Title: Computer Methods in Applied Mechanics and Engineering
ISSN: 00457825
DOI: 10.1016/j.cma.2004.11.001
Appears in Collections:Staff Publications

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