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Transparent absorbing boundary (TAB) for the truncation of the computational domain

机译:透明吸收边界(TAB)用于计算域的截断

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摘要

A new approach to domain truncation without reflection is proposed for finite methods. The open-space Maxwell's equations, along with boundary conditions, are transformed to an equivalent system with a homogeneous closed boundary; the latter is then solved numerically. Like the popular perfectly matched layer (PML), the new method is independent of frequency and incident angle. Its uniqueness is that it does not need the extra absorption region, since the field attenuation takes place in the domain of the subject.
机译:针对有限方法,提出了一种无反射的域截断新方法。麦克斯韦开放空间方程和边界条件一起被转换成具有均匀封闭边界的等价系统。然后对后者进行数值求解。与流行的完全匹配层(PML)一样,新方法与频率和入射角无关。它的独特之处在于它不需要额外的吸收区域,因为场衰减发生在对象的区域内。

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