In this thesis, three mesh generation software packages have been developed and
implemented. The first two were based on structured mesh generation algorithms
and used to solve structured surface and volume mesh generation problems of
three-dimensional domains. Structured mesh generation algorithms were based
on the concept of isoparametric coordinates. In structured surface mesh
generation software, quadrilateral mesh elements were generated for complex
three-dimensional surfaces and these elements were then triangulated in order to
obtain high-quality triangular mesh elements. Structured volume mesh
generation software was used to generate hexahedral mesh elements for volumes.
Tetrahedral mesh elements were constructed from hexahedral elements using
hexahedral node insertion method. The results, which were produced by the mesh
generation algorithms, were converted to a required format in order to be saved in output files. The third software package is an unstructured quality tetrahedral
mesh generator and was used to generate exact Delaunay tetrahedralizations,
constrained (conforming) Delaunay tetrahedralizations and quality conforming
Delaunay tetrahedralizations. Apart from the mesh generation algorithms used
and implemented in this thesis, unstructured mesh generation techniques that can
be used to generate quadrilateral, triangular, hexahedral and tetrahedral mesh
elements were also discussed.
| Identifer | oai:union.ndltd.org:METU/oai:etd.lib.metu.edu.tr:http://etd.lib.metu.edu.tr/upload/1339621/index.pdf |
| Date | 01 January 2003 |
| Creators | Yildiz, Ozgur |
| Contributors | Yuksel, Onder |
| Publisher | METU |
| Source Sets | Middle East Technical Univ. |
| Language | English |
| Detected Language | English |
| Type | M.S. Thesis |
| Format | text/pdf |
| Rights | To liberate the content for public access |
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