| 三角形网格的自动生成及其局部加密技术研究 |
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| 引用本文： | 戴阳豪,张华庆,张征.三角形网格的自动生成及其局部加密技术研究[J].水道港口,2012,33(1):77-81. |
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| 作者姓名： | 戴阳豪 张华庆 张征 |
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| 作者单位： | 1. 哈尔滨工程大学船舶工程学院,哈尔滨,150001
2. 交通运输部天津水运工程科学研究所工程泥沙交通行业重点实验室,天津,300456 |
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| 摘 要： | 将目前比较流行的三角形网格生成方法前沿生成法和delaunay方法结合起来,形成一种新的三角形网格生成方法。利用节点的间距函数来控制计算区域内网格尺寸的变化和疏密过渡,优先处理边界尺寸最长边,逐渐在计算域内过渡生成网格尺寸减小的三角形,最终实现计算区域的三角化。同时利用源项加密和边界加密的方法将工程区域网格细化。
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| 关 键 词： | 三角形网格 前沿生成法 delaunay三角化法 加密 |
Automatic triangulation technique and mesh enrichment |
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| DAI Yang-hao
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ZHANG Hua-qing
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ZHANG Zheng.Automatic triangulation technique and mesh enrichment[J].Journal of Waterway and Harbour,2012,33(1):77-81. |
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| Authors: | DAI Yang-hao ZHANG Hua-qing ZHANG Zheng |
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| Institution: | 1.College of Shipbuilding Engineering,Harbin Engineering University,Harbin 150001,China;2.Tianjin Research Institute for Water Transport Engineering,Key Laboratory of Engineering Sediment,Ministry of Transport,Tianjin 300456,China) |
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| Abstract: | In this paper,two popular triangle grid generation methods including advancing front generation method and delaunay method were combined to form a new method of triangulation.The distance functions of nodes were used to control the changes of mesh size and density transition in calculation region.The longest boundary was prior to be handled to generate the size-reduced triangulation mesh,and finally realize the triangulation of the calculation region.Meanwhile,the encryption on source item and boundary was utilized for mesh refinement. |
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| Keywords: | triangle mesh advancing front generation method delaunay enrichment |
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