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Elastic Wave Propagation in Anisotropic Media and PML

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Hi Everyone,

I am experiencing an issue regarding PML in anisotropic media. I am interested in wave propagation in anisotropic elastic media thus the PML is also the same medium as propagation domain with anisotropic parameters. However, I never get convergence of results by changing the simulation size/PML size etc. I saw reflections from PML. I also did the simulations for isotropic media and everything works.

Does anybody know any issue regarding PML implementation in the case of anisotrpic media?

or Should I take care some additional degrees of freedom such as symmetries or strech parameter etc. for the implementation in the case of anisotrpic media?

Regards, Burak


1 Reply Last Post 17.12.2020, 09:23 GMT-5
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Hello Burak Gurlek

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Posted: 4 years ago 17.12.2020, 09:23 GMT-5

The PML is intrinsically unstable for some of anisotropic media that violate the stability condition. In this case, the PML provides no convergent solution.

The PML is intrinsically unstable for some of anisotropic media that violate the stability condition. In this case, the PML provides no convergent solution.

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