| 引用本文: | 张伟军,柴舜连,刘克成,等.驻波—行波边界条件在PSTD算法中的实现.[J].国防科技大学学报,2003,25(2):73-75.[点击复制] |
| ZHANG WeiJun,CHAI Shunlian,LIU Kecheng,et al.Standing-traveling Wave Boundary Condition for the PSTD Algorithm[J].Journal of National University of Defense Technology,2003,25(2):73-75[点击复制] |
|
| |
|
|
| 本文已被：浏览 7121次 下载 6026次 |
| 驻波—行波边界条件在PSTD算法中的实现 |
| 张伟军, 柴舜连, 刘克成, 毛钧杰 |
|
(国防科技大学 电子科学与工程学院，湖南 长沙 410073)
|
| 摘要: |
| 将时域伪谱法(PSTD)的边界条件PML用驻波—行波边界条件来代替。该条件在边界处附加理想电(磁)壁对计算区域进行截断，将由此产生的反射场去除，从而减少反射场所产生的干扰，在有限的空间内有效地模拟出无限大的电磁散射空间。给出了该边界条件下的二维PSTD迭代格式，并将其数值结果与运用PML边界条件的PSTD的结果进行比较，计算结果表明这种结合形成的新方法节约了内存，提高了计算速度，具有良好的可行性。 |
| 关键词: 驻波—行波条件 时域伪谱法 PML |
| DOI： |
| 投稿日期：2002-08-30 |
| 基金项目: |
|
| Standing-traveling Wave Boundary Condition for the PSTD Algorithm |
| ZHANG WeiJun, CHAI Shunlian, LIU Kecheng, MAO Junjie |
|
(College of Electronic Science and Engineering,National Univ. of Defense Technology,Changsha 410073,China)
|
| Abstract: |
| The paper applies the standing-traveling wave boundary condition to the PSTD method to replace the PML.In this boundary condition,electric or magnetic walls are placed around the domain to be calculated,and the reflection field is removed from the scattering incident wave.The formulation for the method in the condition of 2D is given. The method can save more memory and time than that of the PML when their results are compared. The numerical result shows that the new method is feasible. |
| Keywords: standing-traveling wave boundary condition (STWBC) PSTD PML |
|
|
|
|
|
