A new absorbing layer for elastic waves

Authors:
Daniel Appelö;Gunilla Kreiss
Affiliations:
Department of Numerical Analysis and Computer Science, Royal Institute of Technology, Stockholm, Sweden;Department of Numerical Analysis and Computer Science, Royal Institute of Technology, Stockholm, Sweden
Venue:
Journal of Computational Physics
Year:
2006

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Abstract

A new perfectly matched layer (PML) for the simulation of elastic waves in anisotropic media on an unbounded domain is constructed. Theoretical and numerical results, showing that the stability properties of the present layer are better than previously suggested layers, are presented. In addition, the layer can be formulated with fewer auxiliary variables than the split-field PML.