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November 28, 2023 at 8:04 am
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November 29, 2023 at 6:08 amZheng ZhouAnsys Employee
收敛性测试请参考:Convergence testing process for FDTD simulations
当出现收敛性问题时,首先要检查的是你的模型和电场分布的情况,看看问题出在哪里,比如使用 movie monitor 等查看这个能量增强的原因。如果你的模型里面有大角度 PML 的情况,需要将 PML profile 改成 steep angle 等。
另外你这里更改不同参数之后测试如果发现发散的时刻后移,说明方向就是对的,需要增加更多的 layer 等来实现收敛。
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November 29, 2023 at 6:22 amYANG zehaoSubscriber
感谢!增加了PML层已解决
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December 6, 2023 at 2:50 amkalylcie cieSubscriber
Check the parameters of the absorption layer of the PML, among us online such as the thickness of the absorption layer and the number of absorption splits. Adjusting these parameters may have an impact on the performance of the simulation.
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