Hi, i'm trying to simulate an interdigital transducer for SAW on a lithium niobate substrate but i have a lot of problems adding PML. I have previously simulated using periodic conditions but now i'm trying to simulate the transducer with the actual measures, to avoid the reflections on the material frontiers i'm using PML.
I have created 2 semicircular geometries on each side of the substrate and one rectangular on the bottom in order for the wave to propagate and dissapear along them. I included PML in definitions as is the new method in version 4.2 and linear elastic material (with LiNbO3 elasticity) for these geometries but when i try to simulate it gives error about the coordinates in the semicircular PMLs.
I tried rectangular and cylindrical (with center in the origin and in what would be the center of the circle) and nothing. Tried different PMLs for each geometry which didn't work and just one for all which simulates but doesn't work as it should (no attenuation in the semicircles).
Please has anyone worked with PMLs in acoustics in version 4.2 and is able to help me with this? i can upload the file if it's necessary.
Thanks!
I have created 2 semicircular geometries on each side of the substrate and one rectangular on the bottom in order for the wave to propagate and dissapear along them. I included PML in definitions as is the new method in version 4.2 and linear elastic material (with LiNbO3 elasticity) for these geometries but when i try to simulate it gives error about the coordinates in the semicircular PMLs.
I tried rectangular and cylindrical (with center in the origin and in what would be the center of the circle) and nothing. Tried different PMLs for each geometry which didn't work and just one for all which simulates but doesn't work as it should (no attenuation in the semicircles).
Please has anyone worked with PMLs in acoustics in version 4.2 and is able to help me with this? i can upload the file if it's necessary.
Thanks!