Perfectly Matched Layer for the Wave Equation Finite Difference Time Domain Method
Perfectly Matched Layer for the Wave Equation Finite Difference Time Domain Method
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DOI：
10.1143/jjap.51.07gb02
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发表时间：
2012-07-01
影响因子：
1.5
通讯作者：
Tsuchiya, Takao
中科院分区：
文献类型：
--
作者：
Miyazaki, Yutaka;Tsuchiya, Takao
将完全匹配层（PML）引入波动方程时域有限差分（WE-FDTD）方法。WE-FDTD方法是一种基于中心差分直接离散波动方程的有限差分方法。WE-FDTD方法不需要存储粒子速度信息，因此所需的内存比标准FDTD方法少。在这项研究中，WE-FDTD方法首次与标准FDTD方法相结合。然后，Berenger的PML与WE-FDTD方法相结合。给出了二维和三维声场的数值计算。(C)2012日本应用物理学会
The perfectly matched layer (PML) is introduced into the wave equation finite difference time domain (WE-FDTD) method. The WE-FDTD method is a finite difference method in which the wave equation is directly discretized on the basis of the central differences. The required memory of the WE-FDTD method is less than that of the standard FDTD method because no particle velocity is stored in the memory. In this study, the WE-FDTD method is first combined with the standard FDTD method. Then, Berenger's PML is combined with the WE-FDTD method. Some numerical demonstrations are given for the two-and three-dimensional sound fields. (C) 2012 The Japan Society of Applied Physics