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- W2358822023 abstract "The perfectly matched layer(PML) is a highly efficient absorbing boundary condition used for the numerical modeling of seismic wave equation. The article focuses on the application of this technique to finite-element time-domain numerical modeling of elastic wave equation. However, the finite-element time-domain scheme is based on the secondorder wave equation in displacement formulation. Thus, the first-order PML in velocity-stress formulation cannot be directly applied to this scheme. In this article, we derive the finiteelement matrix equations of second-order PML in displacement formulation, and accomplish the implementation of PML in finite-element time-domain modeling of elastic wave equation. The PML has an approximate zero reflection coefficients for bulk and surface waves in the finite-element modeling of P-SV and SH wave propagation in the 2D homogeneous elastic media. The numerical experiments using a two-layer model with irregular topography validate the efficiency of PML in the modeling of seismic wave propagation in geological models with complex structures and heterogeneous media." @default.
- W2358822023 created "2016-06-24" @default.
- W2358822023 creator A5081759150 @default.
- W2358822023 date "2013-01-01" @default.
- W2358822023 modified "2023-09-26" @default.
- W2358822023 title "Perfectly matched layer-absorbing boundary condition for finite-element time-domain modeling of elastic wave equations" @default.
- W2358822023 hasPublicationYear "2013" @default.
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