A numerical method of generating nonreflecting boundary conditions on open circular boundary for anisotropic media is proposed. The approach is based on the conception of transparent boundary conditions. A two-dimensional wave propagation problem in polar coordinates for orthotropic elastic media is considered to demonstrate transparency and efficiency of the proposed boundary conditions. It is shown that the method gives accurate and stable boundary conditions including cases when PML fails.
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Sofronov, I.L., Zaitsev, N.A. (2008). Transparent Boundary Conditions for the Elastic Waves in Anisotropic Media. In: Benzoni-Gavage, S., Serre, D. (eds) Hyperbolic Problems: Theory, Numerics, Applications. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-75712-2_105
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DOI: https://doi.org/10.1007/978-3-540-75712-2_105
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