Wave propagation near a fluid‐solid interface: A spectral‐element approach

• DOI: 10.1190/1.1444758
• Publication Date: 2002-10-11T19:52:42Z
• Authors: Dimitri Komatitsch; Christophe Barnes; Jeroen Tromp
• Keywords: Matrix (chemical analysis); Interface (matter)

We introduce a spectral‐element method for modeling wave propagation in media with both fluid (acoustic) and solid (elastic) regions, as instance offshore seismic experiments. The problem is formulated terms of displacement elastic regions velocity potential acoustic regions. Matching between domains implemented based upon an interface integral the framework explicit prediction‐multicorrection staggered time scheme. formulation results mass matrix that diagonal by construction. scheme exhibits high accuracy 2-D test case known analytical solution. robust strong topography at fluid‐solid good alternative to classical techniques, such finite differencing.