Perfectly matched layers in the thin layer method
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Kausel_Perfectly matched.pdf
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Author(s)
Park, Joonsang
Kausel, Eduardo A.
Barbosa, Joao Manuel de Oliveira
Date Issued
January 2012
Journal
Computer Methods in Applied Mechanics and Engineering
Publisher
Elsevier
Citation
Barbosa, Joao Manuel de Oliveira, Joonsang Park, and Eduardo Kausel. “Perfectly Matched Layers in the Thin Layer Method.” Computer Methods in Applied Mechanics and Engineering 217–220 (April 2012): 262–274.
Version
Author's final manuscript
Abstract
This paper explores the coupling of the perfectly matched layer technique (PML) with the thin layer method (TLM), the combination of which allows making highly efficient and accurate simulations of layered half-spaces of infinite depth subjected to arbitrary dynamic sources anywhere. It is shown that with an appropriate complex stretching of the thickness of the thin-layers, one can assemble a system of layers which fully absorbs and attenuates waves for any angle of propagation. An extensive set of numerical experiments show that the TLM + PML performance is clearly superior to that of a standard TLM model with paraxial boundaries augmented with buffer layers (TLM + PB). This finding strongly suggests that the proposed combination may in due time constitute the preferred choice for this class of problems.
MIT Department
Massachusetts Institute of Technology. Department of Civil and Environmental Engineering
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Creative Commons Attribution-Noncommercial-NoDerivatives
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DOI of Published Version
https://doi.org/10.1016/j.cma.2011.12.006
