This is not an answer but I'd like to point you to the new in 12.0 Acoustics PDE monographs. There is one about modeling acoustics in the time domainmodeling acoustics in the time domain and one about acoustics modeling in the frequency domainacoustics modeling in the frequency domain. Both these tutorials include sections on absorbing boundary conditions and perfectly matched layers (PMLs). Both of those are for modeling domains with infinite extend. You could read through these sections and see if that can be applied to your case.
This is not an answer but I'd like to point you to the new in 12.0 Acoustics PDE monographs. There is one about modeling acoustics in the time domain and one about acoustics modeling in the frequency domain. Both these tutorials include sections on absorbing boundary conditions and perfectly matched layers (PMLs). Both of those are for modeling domains with infinite extend. You could read through these sections and see if that can be applied to your case.
This is not an answer but I'd like to point you to the new in 12.0 Acoustics PDE monographs. There is one about modeling acoustics in the time domain and one about acoustics modeling in the frequency domain. Both these tutorials include sections on absorbing boundary conditions and perfectly matched layers (PMLs). Both of those are for modeling domains with infinite extend. You could read through these sections and see if that can be applied to your case.
This is not an answer but I'd like to point you to the new in 12.0 Acoustics PDE monographs. There is one about modeling acoustics in the time domain and one about acoustics modeling in the frequency domain. Both these tutorials include sections on absorbing boundary conditions and perfectly matched layers (PMLs). Both of those are for modeling domains with infinite extend. You could read through these sections and see if that can be applied to your case.
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