Mesh motion approach based on spring analogy method for unstructured meshes

被引：4

作者：

Zhang X.-P. ^{[1
]}

Zhou D. ^{[1
]}

Bao Y. ^{[1
]}

机构：

[1] School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University

来源：

Journal of Shanghai Jiaotong University (Science) | 2010年 / 15卷 / 2期

基金：

中国国家自然科学基金;

关键词：

Grid scale; Mesh motion strategy; Mesh quality; Unstructured meshes;

D O I：

10.1007/s12204-010-9547-y

中图分类号：

学科分类号：

摘要：

Mesh motion strategy is one of the key points in many fluid-structure interaction problems. One popular technique used to solve this problem is known as the spring analogy method. In this paper a new mesh update approach based on the spring analogy method is presented for the effective treatment of mesh moving boundary problems. The proposed mesh update technique is developed to avoid the generation of squashed invalid elements and maintain mesh quality by considering each element shape and grid scale to the definition of the spring stiffness. The method is applied to several 2D and 3D boundary correction problems for fully unstructured meshes and evaluated by a mesh quality indicator. With these applications, it is demonstrated that the present method preserves mesh quality even under large motions of bodies. We highlight the advantages of this method with respect to robustness and mesh quality. © Shanghai Jiaotong University and Springer-Verlag Berlin Heidelberg 2010.

引用

页码：138 / 146

页数：8

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