| 非结构网格生成技术 |
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| 引用本文： | 刘星,卞恩荣,朱金福. 非结构网格生成技术[J]. 南京航空航天大学学报, 1999, 0(6) |
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| 作者姓名： | 刘星 卞恩荣 朱金福 |
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| 作者单位： | 南京航空航天大学飞行器系!南京210016 |
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| 摘 要： | 描述了非结构网格生成的过程,网格的生成方法基于Delaunay 三角形方法,并对物面附近网格进行拉伸以便获得在边界层内高拉伸比的三角形单元。网格的生成过程分两部分:(1) 按Delaunay 三角形方法生成适于无粘情况下的非结构网格。(2) 对近物面的部分三角形单元进行拉伸,使生成的网格能适用于粘流。使用上述方法本文构造了二维弯管内绕叶栅区域的非结构网格
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| 关 键 词： | 边界层 非结构网格 三角形单元 拉伸比 Voronoi顶点 |
Unstructured Grid Generation Technique |
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| Liu Xing Bian Enrong Zhu Jinfu. Unstructured Grid Generation Technique[J]. Journal of Nanjing University of Aeronautics & Astronautics, 1999, 0(6) |
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| Authors: | Liu Xing Bian Enrong Zhu Jinfu |
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| Affiliation: | Liu Xing Bian Enrong Zhu Jinfu Department of Aircraft Engineering,Nanjing University of Aeronautics & Astronautics Nanjing,210016 |
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| Abstract: | An unstructured grid generation process is described. The method is based on a Delaunay triangulation performed in a locally stretched space in order to obtain very high aspect ratio triangles in the boundary layer. The process of grid generation includes two parts: (1) Generate an unstructured triangular mesh fit for inviscid flow according to Delaunay triangulation. (2) Stretch the triangulations close to the surface so that the mesh is fit for viscous flow. The unstructured grid is generated in a syphon containing a vane. |
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| Keywords: | boundary layer unstructured grid triangulate element stretch ratio Voronoi vertex |
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