| 适体坐标下二维差分网格自动剖分的研究 |
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| 引用本文： | 吴士平,潘虹,王晔,陈立亮. 适体坐标下二维差分网格自动剖分的研究[J]. 特种铸造及有色合金, 2011, 31(1): 25-27,103. DOI: 10.3870/tzzz.2011.01.009 |
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| 作者姓名： | 吴士平 潘虹 王晔 陈立亮 |
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| 作者单位： | 1. 哈尔滨工业大学材料科学与工程学院
2. 华中科技大学材料科学与工程学院 |
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| 基金项目： | 国家自然科学基金资助项目(50775050); 材料成型与模具技术国家重点实验室开放基金项目(09-04) |
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| 摘 要： | 开展了适体坐标系(Body-Fitted Coordinates,BFC)网格自动生成技术的研究,弥补了有限差分法在笛卡尔直角坐标系下模拟结果连续性差、对不规则区域边界适应性差等不足。采用椭圆型偏微分方程法生成适体坐标网格,并在对DXF文件解析的基础上,针对二维单连域规则图形及二维双连域任意图形开发了适体网格生成系统。结果表明,程序通用性好,能够对大多数复杂区域实现自动剖分,生成的网格能够很好地适应物理区域的曲率变化,物理区域内部的网格分布也比较合理。
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| 关 键 词： | 适体坐标 网格 DXF文件 自动剖分 |
Automatic Enmeshment of 2D Differential Grid Based on BFC (Body-fitted Coordinates) |
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| Wu Shiping,Pan Hong,Wang Ye,Chen Liliang. Automatic Enmeshment of 2D Differential Grid Based on BFC (Body-fitted Coordinates)[J]. Special Casting & Nonferrous Alloys, 2011, 31(1): 25-27,103. DOI: 10.3870/tzzz.2011.01.009 |
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| Authors: | Wu Shiping Pan Hong Wang Ye Chen Liliang |
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| Affiliation: | Wu Shiping1,Pan Hong1,Wang Ye1,Chen Liliang2(1.School of Materials Science and Engineering,Harbin Institute of Technology,Harbin,China,2.School of Materials Science and Engineering,Huazhong University of Science and Technology,Wuhan,China) |
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| Abstract: | Automatic enmeshment of 2D grid based on BFC was investigated,which overcame the problems in lower continuum of simulated results and lower adaptability for irregular region boundary in rectangular coordinates.Automatic enmeshment of BFC grid was developed for 2D single line domain regular graphic and 2D double-line domain arbitrary graphic based on analyzing DXF document by adopting elliptical partial differential equation generating BFC grid.The results show that the program exhibits desirable universalit... |
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| Keywords: | BFC Grid DXF Document Automatic Enmeshment |
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