Octree‐based reasonable‐quality hexahedral mesh generation using a new set of refinement templates |
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| Authors: | Yasushi Ito Alan M. Shih Bharat K. Soni |
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| Affiliation: | 1. Enabling Technology Laboratory (ETLab), Department of Mechanical Engineering, University of Alabama at Birmingham, U.S.A.;2. Research Assistant Professor.;3. Research Associate Professor, Director of ETLab.;4. Professor and Chair. |
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| Abstract: | An octree‐based mesh generation method is proposed to create reasonable‐quality, geometry‐adapted unstructured hexahedral meshes automatically from triangulated surface models without any sharp geometrical features. A new, easy‐to‐implement, easy‐to‐understand set of refinement templates is developed to perform local mesh refinement efficiently even for concave refinement domains without creating hanging nodes. A buffer layer is inserted on an octree core mesh to improve the mesh quality significantly. Laplacian‐like smoothing, angle‐based smoothing and local optimization‐based untangling methods are used with certain restrictions to further improve the mesh quality. Several examples are shown to demonstrate the capability of our hexahedral mesh generation method for complex geometries. Copyright © 2008 John Wiley & Sons, Ltd. |
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| Keywords: | unstructured hexahedral mesh refinement templates CSM biomedical applications mesh generation grid generation |
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