| 求解洞穴散射问题的带有吸收边界层的有限元方法 |
| |
| 引用本文： | 张德悦,马富明,方明. 求解洞穴散射问题的带有吸收边界层的有限元方法[J]. 计算物理, 2008, 25(3): 301-308 |
| |
| 作者姓名： | 张德悦 马富明 方明 |
| |
| 作者单位： | 吉林大学数学科学学院,吉林,长春,130012;吉林大学数学科学学院,吉林,长春,130012;吉林大学数学科学学院,吉林,长春,130012 |
| |
| 摘 要： | 给出二维洞穴散射问题的带有吸收边界层的有限元方法.通过吸收边界层将无界域问题截断,得到一个有界域问题,求解此有界域问题来代替原问题.进一步分析收敛性并进行数值模拟.结果表明了此方法的有效性.
|
| 关 键 词： | 洞穴 吸收边界层 有限元方法 |
| 文章编号： | 1001-246X(2008)03-0301-08 |
| 收稿时间： | 2006-11-08 |
| 修稿时间： | 2006-11-08 |
Finite Element Method with Perfectly Matched Absorbing Layers for Wave Scattering from a Cavity |
| |
| ZHANG Deyue,MA Fuming,FANG Ming. Finite Element Method with Perfectly Matched Absorbing Layers for Wave Scattering from a Cavity[J]. Chinese Journal of Computational Physics, 2008, 25(3): 301-308 |
| |
| Authors: | ZHANG Deyue MA Fuming FANG Ming |
| |
| Affiliation: | College of Mathematics, Jilin University, Changchun 130012, China |
| |
| Abstract: | A finite element method with perfectly matched layers(PML) is developed for wave scattering from a two-dimensional cavity embedded in an infinite ground plane.Based on a variational formulation it uses the PML technique to truncate an unbounded computational domain to a bounded one.Hence,a PML problem instead of the original scattering problem is solved.Convergence of the PML problem to the scattering problem is analyzed.Numerical experiments illustrate competitive behavior of the proposed method. |
| |
| Keywords: | cavity perfectly matched layers finite element method |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《计算物理》浏览原始摘要信息 |
|
点击此处可从《计算物理》下载全文 |
|
