3D optimised hybrid implicit-explicit FDTD method with suppressed numerical dispersion
3D optimised hybrid implicit-explicit FDTD method with suppressed numerical dispersion
复制标题
具有抑制数值色散的 3D 优化混合隐式-显式 FDTD 方法
DOI：
10.1049/el.2017.4539
复制
发表时间：
2018
影响因子：
1.1
通讯作者：
Wu Xianliang
中科院分区：
文献类型：
--
作者：
Niu Kaikun;Huang Zhixiang;Wu Bo;Wu Xianliang
提出了一种抑制数值色散的三维优化混合隐式-显式时域有限差分（HIE-FDTD）方法。与原始的HIE-FDTD方法相比，引入了优化的参数，而不需要花费任何额外的计算资源。此外，该算法牺牲了Courant-Friedrichs-Lewy条件，只需要少量的重新编程。给出了HIE-FDTD方法的修正方程，数值结果表明，该方法具有较好的数值色散性能。
A 3D optimised hybrid implicit–explicit finite‐difference time‐domain (HIE‐FDTD) method aimed at suppressing the numerical dispersion is proposed. Compared with the original HIE‐FDTD method, the optimised parameters are introduced without costing any additional computational resource. In addition, the proposed algorithm sacrifices Courant–Friedrichs–Lewy condition and just requires a modest amount of reprogramming. The update equations of the proposed HIE‐FDTD method are given and numerical results demonstrate that the proposed method performs better in the numerical dispersion.