Numerical analysis of the electromagnetic wave scattering from a moving dielectric body by Overset Grid Generation method
Numerical analysis of the electromagnetic wave scattering from a moving dielectric body by Overset Grid Generation method
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DOI：
10.1109/apace.2012.6457621
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发表时间：
2012-12
期刊：
影响因子：
--
通讯作者：
S. Sahrani;M. Kuroda
中科院分区：
文献类型：
--
作者：
S. Sahrani;M. Kuroda
本文提出了一种利用时域有限差分法（FDTD）结合重叠网格生成法（Overset Grid Generation Method，简称Overset Grid）分析移动边界电磁场的新方法。这种方法以前已经提出了空网格的移动/旋转体的情况下。在这里，该方法被扩展到一个移动的电介质体，线性移动的入射波。分析了入射波入射到高速介质运动物体上时的电磁场散射。数值计算结果与理论计算结果进行了比较，两者吻合较好。这种数值方法可能有许多情况下，它可以应用。这可能涉及到微驱动器、换向器等高频器件的设计。
This paper presents an alternative approach for the analysis of EM field with moving boundaries by FDTD method combined with Overset Grid Generation method, considering Lorentz transformation for the higher velocity cases. This approach has been previously proposed for the case of moving/rotating body with empty grids. Here, the approach is expanded to a moving dielectric body that moves linearly towards and against to the incident wave. The scattering of the EM fields when the incident wave hits the dielectric moving body with high velocity are analyzed. The numerical results are compared with the theoretical results and achieved good agreements between both results. This numerical approach may have numerous situations to which it can be applied. This may be involved with the design of the high-frequency devices such as microactuator, commutator and the others.