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域分解多重散射溶解器的半无限和无限数组的离散的相同的散射器在两个维度
Peter G Petropoulos, Catalin Turc1
1Department of Mathematical Sciences, New Jersey Institute of Technology, Newark, NJ, USA.
概括
域分解 (DD) 方法有效模拟来自各种障碍阵列的散射. 这种方法使用Robin-to-Robin (RtR) 地图用于半无限,无限和大有限数组,使精确的计算电磁解决方案成为可能.
科学领域:
- 计算电磁学 计算机电磁学
- 数字分析 数字分析
- 波浪散射理论 波浪散射理论
背景情况:
- 模拟来自障碍物阵列的散射在电磁学中至关重要.
- 现有的方法面临着半无限,无限和大有限数组的挑战.
- 对于复杂的散射问题,需要有效的数值技术.
研究的目的:
- 为散射模拟引入新的域分解 (DD) 数值方法.
- 为了应对模拟各种类型的障碍阵列 (半无限,无限,大有限) 的挑战.
- 为解决各种数组散射问题提供统一的框架.
主要方法:
- 使用域分解,将计算域划分为单元细胞.
- 采用Robin-to-Robin (RtR) 地图,通过层潜力在里埃域中计算.
- 解决半无限数组使用运算符里卡蒂方程和大有限数组使用层次的舒尔补充.
主要成果:
- 对于半无限和无限数组,包括有缺陷的数组,DD的有效性已被证明.
- 成功地将DD应用到大型有限数组中,使用层次的Schur补充.
- 在不同的数组配置中精确模拟散射现象.
结论:
- 提出的DD方法为涉及各种障碍阵列的分散问题提供了有效和多功能解决方案.
- 使用RtR地图为连接单元细胞和解决复杂问题提供了强大的机制.
- 这项工作通过提供分析波散射的高效工具来推进计算电磁学.
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