| 网格长宽比对隐式多重网格算法收敛率的影响及其改进 |
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| 引用本文： | 唐智礼. 网格长宽比对隐式多重网格算法收敛率的影响及其改进[J]. 计算物理, 1999, 16(1): 1-6 |
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| 作者姓名： | 唐智礼 |
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| 作者单位： | 南京航空航天大学, 210016 |
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| 摘 要： | 计算复杂实用外形绕流时,由于几何外形的复杂性,计算网格的空间网格长宽比变化很大。分析表明使用这类网格将影响隐式多重网格法的收敛率,如果使用与网格长宽比有关的耗散模型,将会克服网格长宽比的影响
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| 关 键 词： | 隐式多重网格法 实用外形 网格长宽比 耗散模型 |
| 收稿时间： | 1997-10-16 |
| 修稿时间： | 1998-06-11 |
The effects of grid aspect ratio on the efficiency of implicit multigrid method and its improvement |
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| Tang Zhili. The effects of grid aspect ratio on the efficiency of implicit multigrid method and its improvement[J]. Chinese Journal of Computational Physics, 1999, 16(1): 1-6 |
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| Authors: | Tang Zhili |
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| Affiliation: | Nanjing University of Aeronautics and Astronautics, 210016 |
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| Abstract: | The effects of grid aspect ratio on the efficiency of implicit multigrid method have been analysed theoretically. The results indicate that the algorithm affects convergence on highly stretched or non unifirm grids. The improvement ways are introduced, and the validations are also been discussed. Finally the comparison of convergence between the original model and the improved one is presented. |
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| Keywords: | implicit multigrid method realistic aerodynamic configuration grid aspect ratio dissipation model |
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