Hi,everyone
As we all know, PML is used to weaken the spatial aliasing effect.But it seems dosen't work on low frequency(500Hz-1kHz),no matter the thickness of the PML
For example, if I put a source on the left side of the grid（140dB）， and set a very thick PML（>200points）,there is still sound waves from the right side of the grid in the beginning of the simulation,which doesn't agree with the absorption ability in the k-Wave manual.
So I want to ask is PML still effective in low frequency.
Lyz2001