Automatic adaptive mesh generation using metric advancing front approach
A new mesh generation procedure is suggested for the generation of 2D adaptive finite element meshes with strong element gradation and stretching effects. Metric tensors are employed to define and control the element characteristics during the mesh generation process. By using the metric tensor s...
| Main Author: | |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2014
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| Online Access: | https://hdl.handle.net/10356/103384 http://hdl.handle.net/10220/19343 |
| _version_ | 1826124934501367808 |
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| author | Lee, Chi King |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Lee, Chi King |
| author_sort | Lee, Chi King |
| collection | NTU |
| description | A new mesh generation procedure is suggested for the generation of 2D adaptive finite
element meshes with strong element gradation and stretching effects. Metric tensors are
employed to define and control the element characteristics during the mesh generation
process. By using the metric tensor specification and a new, robust and refined advancing
front triangulation kernel, triangles with nearly unit edge length with respect to the
normalized space are generated. Highly graded and stretched elements can be generated
without much difficulty and the operation complexity of the mesh generation process is
exactly the same as the usual 2D advancing front mesh generator. A set of mesh quality
enhancement procedures has also been suggested for the further improvement of the quality
of the finite element meshes. A simple and effective mesh conversion scheme is used to
convert the output triangular mesh to a pure quadrilateral mesh while all the essential element
characteristics are preserved. Mesh generation examples show that high quality finite element
meshes with element characteristics compatible with the specified metric tensors are
generated within a reasonable time limit in a common small computing environment. |
| first_indexed | 2024-10-01T06:28:29Z |
| format | Journal Article |
| id | ntu-10356/103384 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:28:29Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | ntu-10356/1033842020-03-07T11:45:55Z Automatic adaptive mesh generation using metric advancing front approach Lee, Chi King School of Civil and Environmental Engineering DRNTU::Engineering::Civil engineering::Structures and design A new mesh generation procedure is suggested for the generation of 2D adaptive finite element meshes with strong element gradation and stretching effects. Metric tensors are employed to define and control the element characteristics during the mesh generation process. By using the metric tensor specification and a new, robust and refined advancing front triangulation kernel, triangles with nearly unit edge length with respect to the normalized space are generated. Highly graded and stretched elements can be generated without much difficulty and the operation complexity of the mesh generation process is exactly the same as the usual 2D advancing front mesh generator. A set of mesh quality enhancement procedures has also been suggested for the further improvement of the quality of the finite element meshes. A simple and effective mesh conversion scheme is used to convert the output triangular mesh to a pure quadrilateral mesh while all the essential element characteristics are preserved. Mesh generation examples show that high quality finite element meshes with element characteristics compatible with the specified metric tensors are generated within a reasonable time limit in a common small computing environment. Accepted version 2014-05-15T06:07:06Z 2019-12-06T21:11:27Z 2014-05-15T06:07:06Z 2019-12-06T21:11:27Z 1999 1999 Journal Article Lee, C. (1999). Automatic adaptive mesh generation using metric advancing front approach. Engineering Computations, 16(2), 230-263. 0264-4401 https://hdl.handle.net/10356/103384 http://hdl.handle.net/10220/19343 10.1108/02644409910257494 en Engineering computations © 1999 Emerald Group Publishing Limited. This is the author created version of a work that has been peer reviewed and accepted for publication by Engineering Computations, Emerald Group Publishing Limited. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1108/02644409910257494]. application/pdf |
| spellingShingle | DRNTU::Engineering::Civil engineering::Structures and design Lee, Chi King Automatic adaptive mesh generation using metric advancing front approach |
| title | Automatic adaptive mesh generation using metric advancing front approach |
| title_full | Automatic adaptive mesh generation using metric advancing front approach |
| title_fullStr | Automatic adaptive mesh generation using metric advancing front approach |
| title_full_unstemmed | Automatic adaptive mesh generation using metric advancing front approach |
| title_short | Automatic adaptive mesh generation using metric advancing front approach |
| title_sort | automatic adaptive mesh generation using metric advancing front approach |
| topic | DRNTU::Engineering::Civil engineering::Structures and design |
| url | https://hdl.handle.net/10356/103384 http://hdl.handle.net/10220/19343 |
| work_keys_str_mv | AT leechiking automaticadaptivemeshgenerationusingmetricadvancingfrontapproach |