| 无限域中的动力人工边界 |
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| 引用本文： | 贺向丽,李同春. 无限域中的动力人工边界[J]. 水利水电科技进展, 2005, 25(3): 64-67 |
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| 作者姓名： | 贺向丽 李同春 |
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| 作者单位： | 河海大学水利水电工程学院,江苏,南京,210098;河海大学水利水电工程学院,江苏,南京,210098 |
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| 摘 要： | 以二维出平面弹性波动为例,总结了几种常用的局部人工边界,即黏性边界、旁轴近似边界、Higdon边界、叠加边界、透射边界和黏弹性边界.分析了各种局部人工边界的优缺点,讨论它们之间的相互联系,并对它们的精度和适用性进行了比较.最后介绍了局部边界尤其是高阶边界可能存在的稳定性问题的研究进展.
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| 关 键 词： | 无限域 人工边界 局部人工边界 边界稳定性 |
| 文章编号： | 1006-7647(2005)03-0064-04 |
| 修稿时间： | 2004-04-07 |
Dynamic artificial boundaries condition for infinite domain |
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| HE Xiang-li,LI Tong-chun. Dynamic artificial boundaries condition for infinite domain[J]. Advances in Science and Technology of Water Resources, 2005, 25(3): 64-67 |
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| Authors: | HE Xiang-li LI Tong-chun |
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| Abstract: | Some local artificial boundaries for 2-D anti-plane wave motion were summarized, including the viscous boundary,paraxial axial approximation boundary, Higdon boundary, superposition boundary, transmitting boundary, and viscous-spring boundary. The advantages and disadvantages of the above boundaries and their relationships were discussed, and the precision and applicability of the boundaries were compared. Finally, some advances in the research of the stability of local boundaries, especially high-order boundaries, were introduced. |
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| Keywords: | infinite domain artificial boundary local artificial boundary stability of boundary |
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