| 摘 要: 块结构四边形子域网格生成法是得到高质量网格的主要途径之一,为了清除四边形块结构子域网格中的细长面、短边、尖锐角等特征,提出一套基于虚拓扑的层次化的特征清理流程。利用节点与边的生成与消除算子,对不同特征提出针对性的清理方案,并建立迭代收敛的优化算法框架,形成完整的特征清理流程。结果表明,该算法成功清除以上问题特征,实现四边形子域的优化,并显著提高了网格划分质量,为后续有限元分析求解提供了良好的条件。 |
| 关键词: 块结构子域 虚拓扑 特征清理 优化算法 |
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| Block-structured Subdomain Optimization Method Based on Virtual Topology |
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zhangguoguang
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University Of Shanghai For Science And Technology
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| Abstract: The block-structured quadrilateral subdomain mesh generation method is one of the primary approaches to obtaining high-quality meshes. To eliminate features such as slender faces, short edges, and sharp angles in quadrilateral block-structured subdomain meshes, a hierarchical feature-cleaning workflow based on virtual topology is proposed. By employing node and edge generation and elimination operators, tailored cleaning solutions are developed for different features, and an iterative convergent optimization algorithm framework is established to form a complete feature-cleaning process. The results show that the proposed algorithm successfully removes the aforementioned problematic features, optimizes the quadrilateral subdomain, and significantly improves the mesh quality, thereby providing favorable conditions for subsequent finite element analysis and solution. |
| Keywords: block-structured subdomain virtual topology feature cleaning optimization algorithm |
