삼차원 직교 격자 생성을 위한 단면 커브를 이용한 옥트리 생성과 셀 절단 알고리듬Octree Generation and Clipping Algorithm using Section Curves for Three Dimensional Cartesian Grid Generation

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Recently, Cartesian grid approach has been popular to generate grid meshes for complex geometries in CFD (Computational Fluid Dynamics) because it is based on the non-body-fitted technique. This paper presents a method of an octree generation and boundary cell clipping using section curves for fast octree generation and elimination of redundant intersections between boundary cells and triangles from 3D triangular mesh. The proposed octree generation method uses 2D Scan-Converting line algorithm, and the clipping is done by parameterization of vertices from section curves. Experimental results provide octree generation time as well as Cut-cell clipping time of several models. The result shows that the proposed octree generation is fast and has linear relationship between grid generation time and the number of cut-cells.
Publisher
한국CAD/CAM학회
Issue Date
2008-12
Language
Korean
Citation

한국CAD/CAM학회 논문집, v.13, no.6, pp.450 - 458

ISSN
1226-0606
URI
http://hdl.handle.net/10203/89260
Appears in Collection
AE-Journal Papers(저널논문)
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