Automatic metric 3D surface mesh generation using subdivision surface geometrical model. Part 2 : mesh generation algorithm and examples
In this paper, a new metric advancing front surface mesh generation scheme is suggested. This new surface mesh generator is based on a new geometrical model employing the interpolating subdivision surface concept. The target surfaces to be meshed are represented implicitly by interpolating subdiv...
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| Format: | Journal Article |
| Language: | English |
| Published: |
2014
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| Online Access: | https://hdl.handle.net/10356/103270 http://hdl.handle.net/10220/19238 |
| Summary: | In this paper, a new metric advancing front surface mesh generation scheme is suggested.
This new surface mesh generator is based on a new geometrical model employing the
interpolating subdivision surface concept. The target surfaces to be meshed are represented
implicitly by interpolating subdivision surfaces which allow the presence of various sharp and
discontinuous features in the underlying geometrical model. While the main generation steps
of the new generator are based on a robust metric surface triangulation kernel developed
previously, a number of specially designed algorithms are developed in order to combine the
existing metric advancing front algorithm with the new geometrical model. As a result, the
application areas of the new mesh generator are largely extended and can be used to handle
problems involving extensive changes in domain geometry. Numerical experience done
indicates that, by using the proposed mesh generation scheme, high quality surface meshes
with rapid varying element size and anisotropic characteristics can be generated in a short
time by using a low -end PC. Finally, by using the pseudo-curvature element-size controlling
metric to impose the curvature element-size requirement in an implicit manner, the new mesh
generation procedure can also generated finite element meshes with high fidelity to
approximate the target surfaces accurately. |
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