关于仿真区域的厚度

- March 6, 2022 at 3:19 am
  
  oylllc
  Subscriber
- March 7, 2022 at 10:24 pm
  
  Guilin Sun
  Ansys Employee
  
  这是因为侧面用的是周期性边界，只有一个网格的厚度，而PML　很厚。
  关键是你设置的参数正确。此外，PML建议离开物体半个波长左右。
  你确认你要仿真的是4个界面，而不是2个界面？如果是两个界面，上下结构需要延申到PML之外。
  此外，细化网格最好将薄层分整数个网格。
- March 8, 2022 at 5:04 am
  
  oylllc
  Subscriber
  
  您好，半个波长指的是材料仿真波段最大值的一半吗？
- March 8, 2022 at 3:23 pm
  
  Guilin Sun
  Ansys Employee
  
  是指PML与结构之间介质中的波长，一般就是背景或者基底里面的波长。当然这个是估计、建议，有时很薄的PML也可以，有时需要很厚，取决于那里电磁场的性质，比如有非传播的进场可能就需要厚，而且PML要离开结构远一些。

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