Automatic metric advancing front triangulation over curved surfaces
A 3D surface mesh generation scheme is suggested for the triangulation of general bi-variate surfaces. The target surface to be meshed is represented as a union of bi-variate sub-surfaces and hence a wide range of surfaces can be modelled. Different useful features such as repeated curves, crack...
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| Main Author: | |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
2014
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/103284 http://hdl.handle.net/10220/19306 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | A 3D surface mesh generation scheme is suggested for the triangulation of general bi-variate
surfaces. The target surface to be meshed is represented as a union of bi-variate sub-surfaces and
hence a wide range of surfaces can be modelled. Different useful features such as repeated
curves, crack lines and surface branches are included in the geometrical and topological models
to increase the flexibility of the mesh generation scheme. The surface metric tensor specification
is employed to define and control the element characteristics in the mesh generation procedure. A
robust metric triangulation kernel is used for parametric space mesh generation. The shape
qualities of the sub-surface meshes generated are then improved by using some ad hoc mesh
quality enhancement schemes before they are combined together to form the final mesh.
Numerical examples indicate that high quality surface meshes with rapid varying element size
and stretching characteristics can be generated within a reasonable time limit in a few mesh
adaptive iterations. |
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