Perfectly matched layers in the thin layer method
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 tha...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
Elsevier
2015
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| Online Access: | http://hdl.handle.net/1721.1/99347 |
| _version_ | 1826215021351272448 |
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| author | Park, Joonsang Kausel, Eduardo A. Barbosa, Joao Manuel de Oliveira |
| author2 | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering Park, Joonsang Kausel, Eduardo A. Barbosa, Joao Manuel de Oliveira |
| author_sort | Park, Joonsang |
| collection | MIT |
| description | 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. |
| first_indexed | 2024-09-23T16:15:15Z |
| format | Article |
| id | mit-1721.1/99347 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:15:15Z |
| publishDate | 2015 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | mit-1721.1/993472022-09-29T19:09:13Z Perfectly matched layers in the thin layer method Park, Joonsang Kausel, Eduardo A. Barbosa, Joao Manuel de Oliveira Massachusetts Institute of Technology. Department of Civil and Environmental Engineering Kausel, Eduardo A. 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. 2015-10-15T17:41:24Z 2015-10-15T17:41:24Z 2012-01 2011-12 Article http://purl.org/eprint/type/JournalArticle 00457825 http://hdl.handle.net/1721.1/99347 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. en_US http://dx.doi.org/10.1016/j.cma.2011.12.006 Computer Methods in Applied Mechanics and Engineering Creative Commons Attribution-Noncommercial-NoDerivatives http://creativecommons.org/licenses/by-nc-nd/4.0/ application/pdf Elsevier OAPOT |
| spellingShingle | Park, Joonsang Kausel, Eduardo A. Barbosa, Joao Manuel de Oliveira Perfectly matched layers in the thin layer method |
| title | Perfectly matched layers in the thin layer method |
| title_full | Perfectly matched layers in the thin layer method |
| title_fullStr | Perfectly matched layers in the thin layer method |
| title_full_unstemmed | Perfectly matched layers in the thin layer method |
| title_short | Perfectly matched layers in the thin layer method |
| title_sort | perfectly matched layers in the thin layer method |
| url | http://hdl.handle.net/1721.1/99347 |
| work_keys_str_mv | AT parkjoonsang perfectlymatchedlayersinthethinlayermethod AT kauseleduardoa perfectlymatchedlayersinthethinlayermethod AT barbosajoaomanueldeoliveira perfectlymatchedlayersinthethinlayermethod |