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| A novel quasi-structural grid generation method |
| Received:December 11, 2017 Revised:January 30, 2018 |
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| DOI：10.7511/jslx20171211001 |
| KeyWord:structural grid quasi structural grid Delaunay triangulation cellular grid NACA0012 |
| Author | Institution |
| 胡月凡 |
西南科技大学 制造科学与工程学院, 绵阳 |
| 庞宇飞 |
中国空气动力研究与发展中心 计算空气动力研究所, 绵阳 |
| 肖素梅 |
西南科技大学 制造科学与工程学院, 绵阳 |
| 齐龙 |
中国空气动力研究与发展中心 计算空气动力研究所, 绵阳 |
| 卢风顺 |
中国空气动力研究与发展中心 计算空气动力研究所, 绵阳 |
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| Abstract: |
| High quality of a structure grid can effectively improve the accuracy of a finite element analysis,however,limited by the poor adaptability of complex geometry,current methods aiming at automatically generating a high-quality mesh meet a great difficulty for two-dimensional models with a complicated boundary.On the other hand,in spite of the good geometric adaptability of an unstructured grid,low efficiency and low accuracy have become the disadvantages.In this paper,a novel quasi-structural grid generation method is presented.This novel method first implements Delaunay Triangulation to the computational domain to generate a coarse background grid.Then a transitional cellular grid is obtained by using the optimized Voronoi Diagram theory.Finally,the cellular grid is subdivided into a structural grid by center circle method.This new grid generation method is proved to be automatic for complex computational domains and highly accurate for numerical simulations through NACA0012 test cases. |
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