圆柱FDTD法向入射下PML性能预测

2019 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM) Pub Date : 2019-01-01 DOI:10.23919/USNC-URSI-NRSM.2019.8712938

M. Hadi, A. Elsherbeni

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引用次数: 0

摘要

本演讲的主要目的是将离散时域有限差分理论应用于圆柱时域有限差分的拉伸坐标PML，并推导出PML区域的整体数值反射系数作为所有算法参数和谐波解的函数。为简洁起见，分析仅限于放射状排列的PML区域的正常发生率。得到的预测方程用于研究PML吸收作为圆柱形谐波和接近旋转轴的函数。

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Predicting PML Performance at Normal Incidence in Cylindrical FDTD

The main objective of this presentation is to apply discrete FDTD theory to the stretched-coordinates PML for cylindrical FDTD and derive the overall numerical reflection coefficient off the PML region as a function of all algorithmic parameters and harmonic solutions. For brevity, analysis are limited to normal incidence on the radially arrayed PML region. Obtained predictive equations are used to investigate PML absorption as a function of cylindrical harmonics and proximity to the axis of rotation.

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2019 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM)

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