Implement ABC or PML boundary condition
I built a simple model consisting of two rectangular surfaces with different permittivities. I have placed a sinusoidal source point in the upper rectangle.
I then do a temporal study of the propagation of the wave between the two media. However I find myself with unwanted reflections on the boundaries of the domain. I therefore wish to implement absorbing boundaries of ABC or PML type.
I could see that these are implemented in the "AcousticScattering" project. However they are in the frequency domain and moreover the associated code is very bulky and I admit having great difficulty in adapting it to my study.
Could you tell me how to implement as simply as possible one of these two absorption conditions?
I have attached the source files and some screenshots of the model.
I thank you in advance,